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Taya2010 [7]
3 years ago
11

In an experiment on the behavior of young children, each placed in an area with five toys. The variable of interest X is the num

ber of toys that the child plays with. Past experiments with many subjects have shown that the probability distribution of the number of toys played with is as follows:
X(number of toys) | 0 | 1 | 2 | 3 | 4 | 5
P(X) | 0.03 | 0.16 | 0.30 | 0.23 | 0.17 | 0.11

a) How many toys might you expect a child to play with?
b) What is the standard deviation of the number of toys played with?
c) Describe how you might carry out a simulation to estimate the mean number of toys played with (don't actually do that simulation, just set it up).
Mathematics
1 answer:
Fofino [41]3 years ago
4 0

Answer:

a)15 b)2.34 c)by taking sum of number of toy divide to its numberings

Step-by-step explanation:

  • in roman a number of toys is equal to the sum of all toys and standard deviation is obtained from formula
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DIC A student has a total of $3000 in student loans that will be paid with a 48-month installment loan with monthly payments of
gtnhenbr [62]

Answer:

The APR of the loan was 18.30%.

Step-by-step explanation:

Given that a student has a total of $ 3000 in student loans that will be paid with a 48-month installment loan with monthly payments of $ 73.94, to determine the APR of the loan to the nearest one-half of a percent the following calculation must be done:

3,000 = 100

(73.94 x 48) = X

3,000 = 100

3,549.12 = X

3,549.12 x 100 / 3,000 = X

354,912 / 3000 = X

118.30 = X

118.30 - 100 = 18.30

Therefore, the APR of the loan was 18.30%.

5 0
3 years ago
Find the equation of a line that passes through left parenthesis 1 comma 6 right parenthesis(1,6) and is parallel to the graph o
max2010maxim [7]

Answer:

The equation for the new line in slope-intercept form is:  

y=4x+2

Step-by-step explanation:

Since they give us an equation in slope-intercept form "y=4x+5", it is easy to extract the slope the new parallel line to this should have : "4" (same slope as the reference line)

We are also given a point the new line should go through : "(1, 6)"

So we can use the "point-slope" form of a line to find the equation of this new line:

y-y_0=m(x=x_0)\\y=m(x-x_0)+y_0

which for our case is:

y=m(x-x_0)+y_0\\y=4\,(x-1)+6\\y=4x-4+6\\y=4x+2

6 0
3 years ago
What is the cube root of 216?
svetlana [45]
\sqrt[3]{216}= \sqrt[3]{6^3}=6
6 0
3 years ago
Read 2 more answers
There are 11 people in line at a checkout counter. The first person in line is currently being helped and will stay at the front
kotykmax [81]

Answer:

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8 0
4 years ago
The ratio of the units digit to the tens digit of a two-digit number is one-half. The tens digit is two more than the units digi
n200080 [17]
The number is 42.

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y/x = 1/2

The tens digit is 2 more than the units digit; x = y+2; substituting in our proportion we have
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Cross multiply:
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Subtract y from each side:
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x = y+2
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xy = 42 
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3 years ago
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