All categories

3 years ago

A normal distribution has a mean of 104 and a standard deviation of 1.9.

Mathematics

1 answer:

den301095 [7]3 years ago

8 0

<h3>Answer: approximately 2.11</h3>

Work Shown:

x = 108 is the raw score we want to transform

mu = 104 is the mean

sigma = 1.9 is the standard deviation

z = (x-mu)/sigma

z = (108-104)/1.9

z = 4/1.9

z = 2.10526315789473 which is approximate

z = 2.11 rounding to two decimal places

I'm rounding to two decimal places because many z tables will work with this level of precision.

You might be interested in

Frank and Keiko each ran every day as part of an exercise routine. Frank ran 3 miles each day for x days. Keiko ran 4 miles each

Gennadij [26K]

Frank ran 3x Keiko ran 4y 3x >_ 4y

3 0

3 years ago

What does paragraph 26 reveal about Rachel's character?

4vir4ik [10]

Answer:

your answer is A hope this helps

Step-by-step explanation:

5 0

3 years ago

A certain type of ceral is sold in boxes of two different sizes. The price of the 8-ounce box is $2.48, and the rice of the 14-p

Bess [88]

Answer:

Step-by-step explanation:

The cereals are sold in boxes of two different sizes.

The price of the 8-ounce box is $2.48. It means that the cost per ounce of cereal in the 8-ounce box is

2.48/8 = $0.31 per ounce

The price of the 14-ounce box is $3.36. It means that the cost per ounce of cereal in the 8-ounce box is

3.36/14 = $0.24 per ounce

Therefore, the cost per ounce of cereal in the 8-ounce box is greater than the cost per ounce of cereal in the 14-ounce box by

0.31 - 0.24 = $0.07

4 0

3 years ago

How many real cube roots does –1 have?

Arlecino [84]

Answer:

every number has a real root which is 1

this is not plagirism, the guy in the comments is copying and pasting so be careful. it can get you kicked out of your school.

Step-by-step explanation:

7 0

3 years ago

The distance around a circle is 37.7 meters long. what is the diameter of the circle?

aksik [14]

Ok so we know that the distance around the circle (or circumference) is equal to the diameter times pi.
This means that
$37.7 = \pi \times d$
d being the diameter,

This means that:
$d = \frac{37.7}{\pi}$
= 12.00028271
= 12 m

So the diameter of the circle is 12 metres.

Hope this helped

6 0

4 years ago