A pile of newspapers in Ms.

1 answer:

7 0

Answer: 23

4x4=16 ( it represents the four weeks and the four inch growth each week)

Now just do 16+7 which equals to 23

You might be interested in

What is the domain of y = (3/(x - 2)^2)- 4 ?

Alenkinab [10]

$Domain \ of \ y=\frac{3}{(x - 2)^2}-4 \ is \ all \ real \ numbers \ except \ 2$

5 0

3 years ago

A consumer survey indicates that the average household spendsμ= $185on groceries each week. The distribution of spending amounts

Vitek1552 [10]

Answer:

$P(X>200)=P(\frac{X-\mu}{\sigma}>\frac{200-\mu}{\sigma})=P(Z>\frac{200-185}{25})=P(Z>0.6)$

And we can find this probability using the complement rule and with the normal standard table or excel:

$P(Z>0.6)=1-P(z$

Step-by-step explanation:

Previous concepts

Normal distribution, is a "probability distribution that is symmetric about the mean, showing that data near the mean are more frequent in occurrence than data far from the mean".

The Z-score is "a numerical measurement used in statistics of a value's relationship to the mean (average) of a group of values, measured in terms of standard deviations from the mean".

Solution to the problem

Let X the random variable that represent the average household spent of a population, and for this case we know the distribution for X is given by:

$X \sim N(185,25)$