Solve for x and graph the solution on the number line

Olivia ate 1/4 of a pizza if there were 12 slices of a Pizza Hut many slices did Olivia eat

Ainat [17]

3 slices

This is because 1/4 of 12 is 3.
This is right because 3 x 4 = 12.

3 0

4 years ago

PLEASE HELP IMMEDIATELY What is the approximate side length of each square

Gwar [14]

Answer:

Step-by-step explanation:

so add what you have if you one number spilt it and divide

8 0

4 years ago

a college student would like to invest the prices of sandwiches offered near the campus a sample of 50 shops that's so sandwiche

fredd [130]

Answer:

the answer is A

Step-by-step explanation:

because the graph is skewed to the left

3 0

3 years ago

What is the name for a measurement of how two variables are related?

lorasvet [3.4K]

Answer:

correlation

Step-by-step explanation:

Correlation is a statistical technique that is used to measure and describe a relationship between two variables.

7 0

3 years ago

Read 2 more answers

A website manager has noticed that during the evening hours, about 5 people per minute check out from their shopping cart and m

Over [174]

Answer:

a) Poisson distribution

b) 99.33% probability that in any one minute at least one purchase is made

c) 0.05% probability that seven people make a purchase in the next four minutes

Step-by-step explanation:

In a Poisson distribution, the probability that X represents the number of successes of a random variable is given by the following formula:

$P(X = x) = \frac{e^{-\mu}*\mu^{x}}{(x)!}$

In which

x is the number of sucesses

e = 2.71828 is the Euler number

$\mu$ is the mean in the given time interval.

5 people per minute check out from their shopping cart and make an online purchase.

This means that $\mu = 5$

a) What model might you suggest to model the number of purchases per minute? 

The only information that we have is the mean number of an event(purchases) in a time interval. Each event is also independent fro each other. So you should suggest the Poisson distribution to model the number of purchases per minute.

b) What is the probability that in any one minute at least one purchase is made? 

Either no purchases are made, or at least one is. The sum of the probabilities of these events is 1. So

$P(X = 0) + P(X \geq 1) = 1$

We want to find $P(X \geq 1)$

So

$P(X \geq 1) = 1 - P(X = 0)$

In which

$P(X = x) = \frac{e^{-\mu}*\mu^{x}}{(x)!}$

$P(X = 0) = \frac{e^{-5}*(5)^{0}}{(0)!} = 0.0067$

1 - 0.0067 = 0.9933.

99.33% probability that in any one minute at least one purchase is made

c) What is the probability that seven people make a purchase in the next four minutes?

The mean is 5 purchases in a minute. So, for 4 minutes

$\mu = 4*5 = 20$

We have to find P(X = 7).

$P(X = x) = \frac{e^{-\mu}*\mu^{x}}{(x)!}$

$P(X = 0) = \frac{e^{-20}*(20)^{7}}{(7)!} = 0.0005$

0.05% probability that seven people make a purchase in the next four minutes

8 0

4 years ago