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3 years ago

Plsss help me! It would mean everything! ASAP! Brainlist! Plssss

Mathematics

1 answer:

Orlov [11]3 years ago

3 0

Answer:

the awnser is 20/4 as an improper fraction or 5 as a whole number.

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Brianna received an overall IQ score of 117 on the Wechsler Scale. This means that Brianna has scored approximately____________

Tresset [83]

Using the normal distribution, it is found that the correct option is:

D. 1; 100

In a normal distribution with mean $\mu$ and standard deviation $\sigma$ , the z-score of a measure X is given by:

$Z = \frac{X - \mu}{\sigma}$

It measures how many standard deviations the measure is from the mean.

In this problem:

The mean on the Wechsler Scale is of 100, hence $\mu = 100$ .

The standard deviation is of 17, hence $\sigma = 17$ .

Brianna had an score of 117, hence $X = 117$

Then:

$Z = \frac{X - \mu}{\sigma}$

$Z = \frac{117 - 100}{17}$

$Z = 1$

Hence, the option d is correct.

To learn more about the normal distribution, you can check brainly.com/question/24663213

7 0

3 years ago

if you were giving advice to a freind, what would you say are the most important things to know about investing 4 sentences

melomori [17]

Answer:

Step-by-step explanation:

Never invest money that you cant afford to lose. Your first goal should always be to avoid major losses. Dont get greedy, be patient, seek the advice of qualified well - regarded advisors, and keep your costs low. Research is a part of an investor's due diligence...so whether you work with investment professionals or on your own, it is wise to do your homework. Dont jump in blind.

5 0

3 years ago

A chameleon is looking for prey. Let positive numbers represent the elevation of prey above the chameleon and negative numbers r

alexira [117]

Answer:

B: The elevation of the chameleon

Step-by-step explanation:

The Fly is above the chameleon, so its elevation should be represented by a "positive number"(Example of positive number: 16)

Also,

The Grasshopper is below the chameleon, so its elevation should be represented by a "negative number"(Example of negative number: -23)

ඞHope this helps u because i got dis question from Khan Academyඞ

4 0

3 years ago

Subtract 8-4 1/2. A. 3 B. 4 C. 4 1/2 D. 3 1/2

kicyunya [14]

This was the answer I came up with - 3.5

3 0

3 years ago

Find the circumference in feet.

Rama09 [41]

Answer:

C≈25.13ft

Step-by-step explanation:

Using the formulas

C=2πr

d=2r

Solving for C

C=πd=π·8≈25.13274ft

3 0

3 years ago