The table shows the costs of different size jars of peanut butter which of the jars has the lowest unit rate

According to the World Health Organization (WHO) Child Growth Standards, the head circumference for boys at birth is normally di

Elena L [17]

Answer:

$z = \frac{X -\mu}{\sigma}$

This z score tell to us how many deviations we are below or above the mean for a given normal distribution.

For the case of Eddie we got:

$z= \frac{33.2-34.5}{1.3}= -1$

And for the case of Sue we got:

$z = \frac{32.7-33.9}{1.2}= -1$

So then for both cases we see that Eddie and Sue are 1 deviation below the true mean for each gender so then the best conclusion for this case would be:

C.They are the same size relative to other children of the same sex.

Step-by-step explanation:

We can define the random variable X as the head circumference for boys at birth and we know that the distribution for X is given by:

$X\sim N(\mu = 34.5, \sigma=1.3)$

Similarly we can define the random variable Y as the head circumference for boys at birth and we know that the distribution for Y is given by:

$Y\sim N(\mu = 33.9, \sigma=1.2)$

And we know that Eddie was born with 33.2 cm and Sue with 32.7 cm for the head circumference . Since we are interested to determine which child's head circumference is smaller relative to other children of the same sex, we can use the z score formula given by this formula:

$z = \frac{X -\mu}{\sigma}$

This z score tell to us how many deviations we are below or above the mean for a given normal distribution.

For the case of Eddie we got:

$z= \frac{33.2-34.5}{1.3}= -1$

And for the case of Sue we got:

$z = \frac{32.7-33.9}{1.2}= -1$

So then for both cases we see that Eddie and Sue are 1 deviation below the true mean for each gender so then the best conclusion for this case would be:

C.They are the same size relative to other children of the same sex.

5 0

3 years ago

The graph of a linear function passes through points A(-2, 5) and B(4, -4). What is the rate of change of the graph?

rodikova [14]

When using the the slope formula the equation would be

-4-5= -9

4- -2=6

You divide and u get 1.5 which is also known as 1 and 1/2

7 0

3 years ago

HELP idk what to do just please give me the answer

Nesterboy [21]

Just convert the kilometers

3 0

3 years ago

Thank you for helping me :D

Aleonysh [2.5K]

The answer is both sets of statistics give the same information:

First, find the mean: 2 • 5 = 10, 3 • 4 = 12, and 10 • 1 = 10

10 + 12 + 10 = 32

Ten dots altogether : 32 ÷ 10 = 3.2

Mean = 3.2

Second, find the median: 2, 2, 2, 2, 2, 3, 3, 3, 3, 10

2, 2, 2, 2, <em>2, 3,</em> 3, 3, 3, 10

2 + 3 = 5

5 / 2 = 2.5

Median - 2.5

3 0

3 years ago

One employee of a computer store is paid a base salary of $2,000 a month plus an 8% commission on all sales over $7,000 during t

Kaylis [27]

Answer:

$25,000

Step-by-step explanation:

You already have 2,000 so all you need to do is get the other 2,000. So you would have to divide 7,000 by 100 which =70 then multiply it by 8 and you get 560. so times it by 4 you get 2,240 so he would need to sale about 28,000 to get 4240, but it a little over, so the answer to get $4000 is not perfect but the closest is $25,004 which is 7,000/100=70 x 3.5715 which will be $2,000.04.

3 0

3 years ago