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3 years ago

(See image below) Thanks!

Mathematics

2 answers:

Viktor [21]3 years ago

7 0

Answer:

Step-by-step explanation:

Due to the -

Assoli18 [71]3 years ago

4 0

Answer:

Step-by-step explanation:

cause i think it is

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A set of final examination grades in an introductory statistics course is normally distributed, with a mean of 77 and a standar

Shalnov [3]

Answer:

0.9007 is the probability that a student scored below 86 on this exam.

Step-by-step explanation:

We are given the following information in the question:

Mean, μ = 77

Standard Deviation, σ = 7

We are given that the distribution of examination grades is a bell shaped distribution that is a normal distribution.

Formula:

$z_{score} = \displaystyle\frac{x-\mu}{\sigma}$

a) P(student scored below 86)

P(x < 86)

$P( x < 86) = P( z < \displaystyle\frac{86 - 77}{7}) = P(z < 1.2857)$

Calculation the value from standard normal z table, we have,

$P(x < 1.2857) = 0.9007 = 90.07\%$

0.9007 is the probability that a student scored below 86 on this exam.

7 0

3 years ago

Evaluated to square

denis-greek [22]

Step-by-step explanation:

The square root of a number is a number that you can square to get it, that is, a number that you can multiply by itself to get the number. So, 2 is a square root of 4, because 2 x 2 = 4, and 3 is a square root of 9, because 3 x 2 = 9.

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3 years ago

Find the greatest common factor of the following numbers.

densk [106]

2 times 3 times 4 times 4 times 5 equals 480

5 0

3 years ago

Write one hundred billion one hundred million one hundred thousand one hundred in numbers

KonstantinChe [14]

100,100,100,100 is the answer

3 0

4 years ago

If UW = 7x-27, find UW

sveticcg [70]

Answer:(_＼ヽ

＼＼ .Λ＿Λ.

＼(　ˇωˇ)　

>　⌒ヽ

　/ へ＼

/ /　＼＼

ﾚ　ノヽ_つ

/　/

/　/|

　(　(ヽ

　|　|、＼

　| 丿＼ ⌒)

　| | ) /

`ノ ) Lﾉ

(_／

Step-by-step explanation: your welcome! Tehehehehe

4 0

3 years ago