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adelina 88 [10]

3 years ago

8

A given set of values is found to be a normal distribution with a mean of 140 and a standard deviation of 18.0. Find the value t

hat separates the bottom 45% of the data from the top 55%
148.1
142.3
149.9
137.8

1 answer:

e-lub [12.9K]3 years ago

3 0

Answer:

137.8

Step-by-step explanation:

You might be interested in

What is bigger 7/8 or 0.78

blsea [12.9K]

Solutions

To solve the problem we first have to convert the fraction into a decimal. To convert a fraction into a decimal you have to divide the <span>numerator</span> by the denominator.

7/8
= 7 ÷ 8
= 0.875

0.875 is bigger then 0.78 therefore 7/8 is greater.

8 0

3 years ago

Masja [62]

Answer:

(A) The rate of change in the price of a bushel of corn in the current year is $7.

(B) The price of a bushel of corn in the current year is $2 more than the price of a bushel of corn in the previous year.

Step-by-step explanation:

The graph for the prices of different numbers of bushels of corn at a store in the current year is shown below.

Part A:

The rate of change in the price of a bushel of corn in the current year based upon the number of bushels is known as the slope of the line.

The formula to compute the slope is:

$\text{Slope}=\frac{y_{2}-y_{1}}{x_{2}-x_{1}}$

Consider the ordered pairs: (4, 28) and (10, 70)

Compute the slope of the line as follows:

$\text{Slope}=\frac{y_{2}-y_{1}}{x_{2}-x_{1}}$

$=\frac{70-28}{10-4}\\\\=\frac{42}{6}\\\\=7$

Thus, the rate of change in the price of a bushel of corn in the current year is $7.

Part B:

The data for the price of bushels in the previous year is as follows:

Number of Bushels Price

2 10

4 20

6 30

8 40

Compute the rate of change in the price of a bushel of corn in the previous year based upon the number of bushels as follows:

Consider the ordered pairs: (2, 10) and (6, 30)

$\text{Slope}=\frac{y_{2}-y_{1}}{x_{2}-x_{1}}$

$=\frac{30-10}{6-2}\\\\=\frac{20}{4}\\\\=5$

The rate of change in the price of a bushel of corn in the previous year is $5.

Thus, the price of a bushel of corn in the current year is $2 more than the price of a bushel of corn in the previous year.

5 0

3 years ago

) How many miles can the SUV travel on<br> 25 gallons of gas?<br> miles

Evgesh-ka [11]

Answer:

Around 460 miles

Step-by-step explanation:

5 0

3 years ago

Sam and Jesse can wash 5 cars each hour. They work for 7 hours each day over 2 days . How many cars did Sam and fesse wash ?

Luba_88 [7]

If you'd like to know how to solve it;

You must take the time each day (7 hours) and the amount of cars (5 cars) and multiply. This should give you 35 cars. Then all you would need to do is add another 35 (because there's 2 days) and you have your answer.

7*5+35 = 70

or

(7*5)2 = 70

3 0

4 years ago

40% of students play an instrument if 8 represents the amount of students who play an instrument how many students are in this c

qwelly [4]

Answer:

500 students

Step-by-step explanation:

6 0

3 years ago