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3 years ago

15

I didn’t buy the population the sample and the sampling technique and each scenario. Tyson has 25 flyers to place. He looks at a

row of 100 cars in the parking garage. He wants to spread them evenly so he begins with the 50th

1 answer:

Gnom [1K]3 years ago

3 0

He needs to place them every four cars, 100/25=4, if he starts at the 50th car he needs to place them every two cars, 50/25=2

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Percentage grade averages were taken across all disciplines at a particular university, and the mean average was found to be 83.

Georgia [21]

Correct Ans:
Option A. 0.0100

Solution:
We are to find the probability that the class average for 10 selected classes is greater than 90. This involves the utilization of standard normal distribution.

First step will be to convert the given score into z score for given mean, standard deviation and sample size and then use that z score to find the said probability. So converting the value to z score:

$z-score= \frac{90-83.6}{ \frac{8.7}{ \sqrt{10} } } \\ \\ 
z-score =2.326$

So, 90 converted to z score for given data is 2.326. Now using the z-table we are to find the probability of z score to be greater than 2.326. The probability comes out to be 0.01.

Therefore, there is a 0.01 probability of the class average to be greater than 90 for the 10 classes.

5 0

4 years ago

The graph shows the number of flowers that can be pollinated as the number of bees increase. What is the unit rate?

dybincka [34]

Answer:

6

Step-by-step explanation:

Hope that helps

5 0

3 years ago

What is 506 divided by 22

Anika [276]

506 divided by 22 is 23.

5 0

3 years ago

Read 2 more answers

Nadia is a stockbroker. She earns 13% commission each week. Last week, she sold $4,500 worth of stocks. How much did she make

m_a_m_a [10]

Multiply amount sold by commission rate:

4500 x 0.13 = 585

She made $585 last week.

Multiply amount made in 1 week by 52 weeks ( 1 year = 52 weeks)

585 x 52 = 30,420

She made $30,420 in 2011

6 0

3 years ago

Inverse Functions (please help)

Ann [662]

Answer:

The procedure for this case is add three, then divide by 5.

Step-by-step explanation:

if y=5x-3

to find the inverse, we exchange x and y then solve for the new y.

x=5y-3 add 3

x+3 = 5y divide by 5

(x+3)/5 = y

or

inverse, y=(x+3)/5

The procedure for this case is add three, then divide by 5.

4 0

3 years ago