3 years ago

Ms. Parker determined that the mean test score in her first-period class

Mathematics

1 answer:

cluponka [151]3 years ago

6 0

Answer:

B. Period 1 had scores that were less spread out around the mean than

Period 2

Step-by-step explanation:

Because the standard deviation of Period 2's scores is greater than that of Period 1's, the test scores for Period 2 are going to be more spread out than Period 1's test scores. B is the most logical choice in this case.

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The miles-per-gallon obtained by the 1995 model Z cars is normally distributed with a mean of 22 miles-per-gallon and a standard

AlekseyPX

Answer:

0.42074

Step-by-step explanation:

In this question, we are asked to calculate the probability that a car will get less than 21 miles per gallon.

This is P(x < 21)

z = 21-22/5 = -1/5 = -0.2

Therefore the probability of getting less than 21 miles per gallon will be;

P(x<21) = P (z < -0.2)

= 0.42074

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3 years ago

Asphere has a diameter of 14 ft. Which equation finds the volume of the sphere?

vichka [17]

Answer:

The last answer should be correct.

Step-by-step explanation:

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3 years ago

Juan bought a gift for his friend. He wants to place the gift in a package with the length of 8 inches, width of 7 inches, and t

creativ13 [48]

266 is the answer

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3 years ago

F(x)=-6(x+5) find the value of f(4) for the function

user100 [1]

Answer:

-54

Step-by-step explanation:

For this question, all you have to do it plug 4 in for x.

-6(4+5)

-6(9)

-54

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3 years ago

How do I solve this complex expression- <br> (5+2i)+(6i^2-3i+2)

Anettt [7]

Answer:

1-i

Step-by-step explanation:

Hello,

you know that $i^2=-1$ , right?

$(5+2i)+(6i^2-3i+2)\\\\=5+2i-6-3i+2\\ \\=1-i$

Thanks

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4 years ago