Mathematics College

URGENT!!!!
In a class of students, the following data table summarizes how many students have a
brother or a sister. What is the probability that a student chosen randomly from the
class has a sister?

URGENT!!!!In A Class Of Students, The Following Data Table Summarizes How Many Students Have Abrother

Answers

Answer 1

Answer: 5/30 chance of it happening

Step-by-step explanation:

Answer 2

The probability is 5/30 chance of it happening.

We have given that,

In a class of students, the following data table summarizes how many students have a brother or a sister.

We have to determine the probability that a student chosen randomly from the class has a sister.

What is the formula for probability?

The probability is the ratio of the number of favorable outcomes to the total outcomes in that sample space. It is expressed as, Probability of an event P(E) = (Number of favorable outcomes) ÷ (Sample space).

Therefore the probability is 5/30 chance of it happening.

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Related Questions

7
1. Represent these numbers on the number line. (i)7÷4​

Answers

Answer:

Answer is in picture

Step-by-step explanation:

Hope it is helpful.....

Refer to the accompanying data set and use the 30 screw lengths to construct a frequency distribution. Begin with a lower class limit of 3.470 ​in., and use a class width of 0.010 in. The screws were labeled as having a length of 3 1/2 in

Answers

Answer:

Answer:

A) Total frequency = 30

B) Yes, the distribution is consistent with the label because the frequencies are greatest when the lengths are closest to the labeled size of 1/2 inches which is 0.5 inches.

Step-by-step explanation:

Since the class limit width is 0.010 from the question, we arrive at;

Class Limits Frequency

Length(Inches)

0.470 - 0.479 3

0.480 - 0. 489 5

0.490 - 0.499 9

0.500 - 0.509 12

0.510 - 0.519 1

Following is the frequency distribution table:

How to build a frequency table?

The lower limit is given as 3.470 inches.

The upper limit is 3.500 inches.

And the width of each class is 0.010 inches.

Therefore, the intervals will be:

3.470-3.480

3.480-3.490

3.490-3.500

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Find the measure of <5.
45 = [?]
69%
25

Answers

Answer:

Solution given:

<5+69°=180°[co- interior angle]

<5=180°-69°=111°

<5=111°

Select the expression that represents the following statement: 3 times one fourth the difference of 26 and 10. (4 points)

one fourth x (26 + 10) x 3
one fourth x (26 − 10) x 3
3 x one fourth x 26 − 10
3 x one fourth x 26 x 10

Answers

3 x one fourth x 26 - 10

Find missing angle measure M

Answers

Answer:

m<Q = 30 degrees

Step-by-step explanation:

Add 126 and 24 which equals 150

Subtract 180 from 150

You get 30

The diameter of a cake is 7.8 inches. What is the area of the cake?

Answers

A = πr^2
The radius is half of the diameter.
r = 7.8 / 2
r = 3.9

A = π(3.9)^2
A ≈ 47.78

Answer:

A = 12.25 sq inches

Step-by-step explanation:

A = (7.8/2)²π

A = 3.9²π

A = 12.25 sq inches

A pencil box is in the shape of a right rectangular prism and filled with unit cubes as shown below. Each unit cube has a length of 1 centimeter (cm). What is the volume of the pencil box?

A - 20 square centimeters


B - 36 cubic centimeters


C - 240 square centimeters


D - 480 cubic centimeters

Answers

Answer:480

multiply the L W H

About 9% of men have red-green color blindness. If three men are selected at random, what is the probability that two will be color blind and one will not be color blind?

Answers

Answer: The answer is 0.81 %

Step-by-step explanation:

Aria recorded her daily lemonade stand profit during one week. Which data representation would you use to show her profit over the week? Explain how you would draw it and what you would expect to see

Answers

Answer:

Step-by-step explanation:

a line graph would show the data over time.I would plot the days along the horizontal axis and each daily profit at points on the vertical axis.I would connect the points with lines.If her profit increasing each day, I would expect the line height to increase over time.

Answer:

There is already another answer:

line graph or bar graph because it shows you what day of the week you sell more lemonade.

Step-by-step explanation:

what should be added to 3/4+-5/6+1/2 to get 0

Answers

Answer:

-5/12

Step-by-step explanation:

3/4+-5/6+1/2 = 5/12

5/12 - 5/15 = 0


Which one of the following U.S. customary units is closest in volume to I liter?

Answers

Answer:

c

Step-by-step explanation:

Quart is one of the following U.S. customary units is closest in volume to 1 liter. Option D is correct.

What is volume?

The term "volume" refers to the amount of three-dimensional space taken up by an item or a closed surface. It is denoted by V and its SI unit is in cubic cm.

The relation between the quart and the liter is found as;

1 quarts = 0.94635295 liters

The value in liter is approximately equal to 1. Quart is one of the following U.S. customary units is closest in volume to 1 liter.

Hence,option D is correct.

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What is the lateral surface area of this cylinder?
A-452.16 sq. yds
B-226.08 sq. yds
C-678.24 sq. yds
D-904.32 sq. yds

Answers

Answer:

A. 452.16 yd²

Step-by-step explanation:

Lateral surface of the cylinder = 2πrh

Where,

r = 6 yd

h = 12 yd

π = 3.14

Plug in the values

Lateral Surface Area of the cylinder = 2*3.14*6*12

Area = 452.16 yd²

what is the range of magazines sold?


please answer will give brainliest

Answers

Answer:

range: 8

Step-by-step explanation:

In order to find the range you need the minimum and maximum

minimum: 17

maximum: 25

Subtract

25-17=8

Which statement best describes the association between variable X and variable Y?

perfect negative association

moderate positive association

no association

strong negative association

Answers

Answer:

no association

Step-by-step explanation:

I just took the k12 test.

HELP! WILL GIVE BRANLIEST!

Answers

Answer:

x = 7

z = 85

Step-by-step explanation:

For x:

8x + 39 = 95

8x = 56

x = 7

For z:

95 + 95 + z + z = 360

190 + 2z = 360

2z = 170

z = 85

Check work:

DOES 85 + 85 + 95 + 95 = 360 ? Yes. Answer is correct.

I would appreciate Brainliest, but no worries.

Please help immediately! also don't use a link to a website​

Answers

Answer:

Step-by-step explanation:

the radius is half the diameter:

7/2 : 2 = 7/2 x 1/2 = 7/4 cm

the circumference is:

diameter x π = 7/2π cm

the approximate circumference is

7/2 x 3,14 = 10,99 cm

Alice makes 32 of her 40 free throws during practice. Which teammate has a higher probability of making a free throw during practice?

Answers

Answer:

Step-by-step explanation:

B dawn made 45 out of 50 free throws

help me......................

Answers

Answer:

a

Step-by-step explanation:

In which quadrant would you find the point (5, -6)

Answers

Fouth quadrant (IV)
It is correct

Answer:

The fourth one.

Explanation:

Right five, down six

HELPP ME IM FAILING IN MATH

Answers

Answer:

-2, 4

Step-by-step explanation:

a parallelogram is a shape that's lines will never cross, putting the 4th plot there would make that true

Answer:

Plot (-3,5)

I hope this is right ; -;

Please no links I’ll be picking brainiest

Answers

Answer:

y=6x-2.5

Step-by-step explanation:

It goes up by $6and if it is zero miles it is -2.5.

A fair number cube, with numbers 1 through 6, was rolled 200 times. The number 5 was rolled 34 times. If the number cube was rolled 300 times, approximately how many times would the number 5 be rolled?

A:9

B:15

C:51

D:134

Answers

Answer:

51

Step-by-step explanation:

34/200=.17

.17×300= 51

What could be added to each expression to make it a perfect square? Then
write the perfect square factor.
Expression 1*
2 poi
x2 + 12x

Answers

Answer:

x²

Step-by-step explanation:

just check this 2x²+3x-5=0

Plesse help me:) ive been stuck on this for a while

Answers

Answer:

4th number line (the one of the bottom right)

Step-by-step explanation:

First, solve the inequality, then choose the number line that mathes the solution.

3x ≤ -6

Only step: Divide by 3.

x ≤ -6/3

x ≤ -2

But which number line matches the solution?

We know this is going left, so #1 & #3 are out. This also has a closed circle (because of ≤ (less than/equal to)), so #2 is also out.

Number line #4 matches the solution (x ≤ -2), so it is the answer.

Help!!! Algebra 2
:( Due in 7Mins

Answers

Answer

d

Step-by-step explanation: The chain rule states that the derivative of f(g(x)) is f'(g(x))⋅g'(x). In other words, it helps us differentiate *composite functions*.

1. Explain why it makes sense to call the following expression a “perfect
square." *
x2 + 20x + 100

Answers

Answer:

because all sides are equal

The expression is a perfect square of (x+10)².

What is perfect square?

A perfect square is a number that can be expressed as the product of an integer by itself or as the second exponent of an integer.

For example, 25 is a perfect square because it is the product of integer 5 by itself, 5 × 5 = 25.

Given that the expression, x² + 20x + 100,

So, writing the expression as expanded form,

x·x + 2·10·x + 10·10

x² + 2·10·x + 10²

We see it is in the form of a² + 2ab + b²,

We know that, a² + 2ab + b² = (a+b)²

So,

x² + 2·10·x + 10² = (x+10)²

Hence the expression is a perfect square of (x+10)².

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32) If somebody has a monthly income of $2,543, what should their monthly auto expense be?

Answers

Answer:

$211.916

Step-by-step explanation:

Solve the equation for X.
X
12
4

Answers

Answer:

x=16

Step-by-step explanation:

QUESTION 5 of 10: Throughput is the number of units a machine or process can produce in a given time. Cycle time is the time to produce
one unit. If the cycle time of your machine is 35 seconds and it runs 24/7, what is the throughput for a year period?
O a) 901,029
Ob) 969,623
c) 1,180,336
d) 1,173,322

Answers

9514 1404 393

Answer:

  a) 901,029

Step-by-step explanation:

The production volume for 1 year is ...

  1 unit/(35 s) × (3600 s)/(1 h) × (24 h)/(1 day) × (365 day)/(1 year)

  = 3600×24×365/35 unit/year = 901,029 unit/year

The question is on the ss btw

Answers

Answer:

The shop

Step-by-step explanation:

Given

Shop

[tex]Cost = E9[/tex]

[tex]Bag = 12.5kg[/tex]

Supermarket

[tex]Cost=E1.83[/tex]

[tex]Bag = 2.5kg[/tex]

Required

The better value

To do this, we simply calculate the unit price.

This is calculated as:

[tex]Unit = \frac{Price}{Bag}[/tex]

So, we have:

Shop

[tex]Unit = \frac{9}{12.5}[/tex]

[tex]Unit = 0.72[/tex]

Supermarket

[tex]Unit = \frac{1.83}{2.5}[/tex]

[tex]Unit = 0.732[/tex]

At the shop, the unit price is £0.72 per bag while at the supermarket, the unit price is £0.732

The best value is at the shop, because it is cheaper

i.e.

[tex]0.72 < 0.732[/tex]

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