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2 years ago

Find the probability that in a family of 6 children there will be a) at least 2 boys

Mathematics

1 answer:

cupoosta [38]2 years ago

3 0

Answer:

a) 1/3

b) 1/6 for a boy and 1/6 for a girl. (1/6)+(1/6) = (2/6) = 1/3

c) 1/2

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A researcher is interested in determining if the more than two thirds of students would support making the Tuesday before Thanks

Yakvenalex [24]

Answer:

The null hypothesis is, {H₀}: p = 0.66, H₀: p = 0.66 .

The alternative hypothesis is, {Hₐ}: p > 0.66, Hₐ: p > 0.66

Step-by-step explanation:

Let p represent the proportion of students who are supportive of making the day before Thanksgiving a holiday.

Since two populations are considered, the alternative hypothesis for the difference of the means of the two populations has to be stated.

The proportion of two-third students are supportive of making the day before Thanksgiving a holiday is p = 0.66 obtained as shown below:

The null hypothesis is,

{H₀}:p = 0.66, H₀: p = 0.66

The alternative hypothesis is,

{Hₐ:p > 0.66, Ha: p > 0.66

The null hypothesis is, {H₀}: p = 0.66, H₀: p=0.66 .

The alternative hypothesis is, {Hₐ}: p > 0.66, Hₐ: p > 0.66

3 0

2 years ago

Solve 3/5b = 24 help me

STALIN [3.7K]

You would multiply by the reciprocal (flip the fraction)
5/3 * 24 = 40
b = 40

4 0

3 years ago

Read 2 more answers

Isabel needs to cut a square piece of wood with the area of 70 in.² approximate the size of the square and round to the nearest

Alla [95]

Answer: 8.4 inch

Step-by-step explanation:

To find the size of the square, just find the square root of 70. Because the area of a square is the side length squared

$\sqrt{70}$ = 8.3666 rounded to the nearest 10th is 8.4 inch

5 0

3 years ago

One number is equal to the square of another. find the numbers if both are positive and their sum is 930.

Varvara68 [4.7K]

One number is equal to the square of another. find the numbers if both are positive and their sum is 930.

7 0

3 years ago

Solve equation? 3(-7+r)=-36

Minchanka [31]

Hey there!

First we need to add by $21$ on each of your sides

Like: $3r - 21 + 21 \\ \\ -36 +21$

This gives us: $3r = 15$

Now we have to $divide$ by $3$ on each sides

Like: $\frac{3r}{3} \\ \\ = \frac{-15}{3}$

$Answer: r = -5$

Good luck on your assignment and enjoy your day!

~ $MeIsKaitlyn:)$

8 0

3 years ago