Question solve for m

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

using the two points find the slope then write the equation in slope intercept form AND standard form. (-6, 4) and (0, 3)

Paraphin [41]

so to find the slope we do y2- y1/ x2-x1

plug in the coordinates: (-6,4) (0,3)

3-4/ 0--6

3-4/0+6

= -1/6

Then using the formula of slop intercept form: y=mx+b........ use one of the coordinates to plug in

4= -1/6x+b...... multiply -6/1 on both sides of equation ( you do this so -1/6 and -6/1 can cancel out)

-24=b........ Use b to plug in y=mx+b---------> y= -1/6x-24

5 0

3 years ago

Match each function name with its equation. (Look at picture)

iragen [17]

Answer:

a. square root is y = $\sqrt{x}$

b. linear is y = x

c. cubic is $y = x^3$

d. quadratic is $y = x^2$

e. reciprocal squared is $y = \frac{1}{x^2}$

f. absolute value is y = |x|

g. reciprocal is $y = \frac{1}{x}$

h. cube root is $y = \sqrt[3]{x}$

Step-by-step explanation:

8 0

3 years ago

kevin wants to make a mixture that is 50% lemon juice and 50% lime juice how much 100% lesson juice should he add to a juice mix

fiasKO [112]

Answer:

Kevin must add 1.2 gallons of 100% lemon juice to make a mixture of 50% lemon and 50% lime.

Step-by-step explanation:

Given : Kevin wants to make a mixture that is 50% lemon juice and 50% lime juice. 100% lesson juice should he add to a juice mixture that is 40% lemon juice and 60% lime juice to make 6 gallons of the 50% lemon 50% lime juice mixture.

To find : How much 100% lesson juice should he add to a juice mixture.

Solution :

According to question, we wants to make mixture where lemon = lime

We have to make 6 gallons, where

40% lemon juice require to make 6 gallon

i.e, $40\% \text{ of } 6= 0.4 \times 60=2.4$

and 60% lime juice require to make 6 gallon

i.e, $60\% \text{ of } 6= 0.6 \times 60=3.6$

Now, to make them equal subtract both of them

$\Rightarrow 3.6-2.4=1.2$

Therefore, he must add 1.2 gallons of 100% lemon juice to make a mixture of 50% lemon and 50% lime.

8 0

3 years ago

Read 2 more answers

X+y=1 2x-y=-2 Please help

Illusion [34]

Hi fren,

x=−y+1
and for the second one...
y=2x+2

x-intercept >> (−1,0)
y-intercept >> (0,2)

4 0

3 years ago

Read 2 more answers