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Jlenok [28]
3 years ago
13

The Smith family was one of the first to come to the U.S. They had 8 children. Assuming that the probability of a child being a

girl is .5, find the probability that the Smith family had: (do not round your answers)
Mathematics
1 answer:
OLEGan [10]3 years ago
8 0

Answer: Hello some part of your question is missing below is the missing part

Missing question:  Find the probability that the Smith family had at least 6 girls?

answer : 0.1406

Step-by-step explanation:

Number of children = 8

probability of a child being a girl ( success ) = 0.5  (

P( boy ) ( q ) = 1 - 0.5 = 0.5

P( at least 6 girls ) = p(k = 6 ) + p(k = 7 )

                              = 0.109375 + 0.03125 ≈ 0.1406

( using Binomial probability Calculator )

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Answer:$64 BEFORE TAX

Step-by-step explanation: Pretax price:$62.14

Sales tax:$1.86

Total price with sales tax:$64.00

3 0
3 years ago
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I want the solution, please<br>​
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Answer:

7 and 7

Step-by-step explanation:

1*13=13

2*12=24

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4*10=40

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6*8=48

7*7=49: This is the peak

3 0
3 years ago
A thermometer falls from a weather
Nesterboy [21]

Answer:

It will take 22 seconds for the thermometer to hit the ground.

Step-by-step explanation:

A thermometer falls from a weather balloon at a height of 7,744 ft.

This means that the initial height is of 7744ft.

h(t) = -16t2 + initial height

So

h(t) = -16t^2 + 7744

How many seconds will it take for the thermometer to hit the ground?

This is t for which h(t) = 0. So

0 = -16t^2 + 7744

16t^2 = 0 + 7744

t^2 = \frac{7744}{16}

t = \sqrt{\frac{7744}{16}}

t = 22

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6 0
3 years ago
Each of the 4 family members uses 175 or fewer minutes of their combined family cell phone plan. At the end of the month, the fa
miskamm [114]

Answer:

The family might share maximum of 700 mins each month.

Step-by-step explanation:

Given:

Total number of minutes used by each member = 175

Number of members in family = 4

We need to find the number of minute family will share each month.

Solution:

Let the number of minute family will share each month be 'x'.

So we know that;

Total number of minute family will share each month should be less than or equal to Total number of minutes used by each member multiplied by Number of members in family

framing in equation form we get;

x\leq 175\times4\\\\x\leq 700 \ mins

Hence The family might share maximum of 700 mins each month.

5 0
4 years ago
Betty is participating in a walk a thon. For every .25 miles she walks, she earns a donation. Betty walks 2.50 miles. How many d
scoundrel [369]
She earned 10 donations.
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3 0
3 years ago
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