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ryzh [129]
3 years ago
9

What value has a z-score of -0.67, if the mean is 18 and the standard deviation is 1.68?

Mathematics
1 answer:
uranmaximum [27]3 years ago
7 0
The data point is 1.6 standard deviations above the mean.
Step-by-step explanation:
Z-score
It is the number of standard deviations from the mean that a data point is. It's a measure of how many standard deviations below or above the population mean a raw score is.
A Z-score is also known as a standard score and it can be placed on a normal distribution curve.
As in this case the Z-score is +1.6, so it means the data point is 1.6 standard deviations above the mean. Hope this helps I am kinda knew to this so I hope I helped you
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Mrs.Isoceles has graded 20% of her 150 students papers how many papers does she still need to grade
Daniel [21]
The answer is 30. you can find the unit rate but the calculator was invented a long time ago so i used that ;)
3 0
3 years ago
Read 2 more answers
-2/3f=9.2<br> -1/8n = -2/7 <br> 12/20n = -36/44<br> -64.5g = -25.8 <br> -15/28 = -9/10
user100 [1]

Step-by-step explanation:

-2/3f =9.2

cross multiply

27,6= -2f

divide both sides by 2

f = - 13.8

-1/8n = -2/7

cross multiply

-16 = -7n

divide

n = 2.29

12/20n = -36/44

cross multiply

528 = - 720n

divide

n= -0.733

-64.5g = -25.8

divide both sides by -64.5

g = -0.4

the last one has no variable

5 0
3 years ago
For the figures shown, HJKL ~ QRST, and the scale factor of HJKL to QRST is 9/7.
ch4aika [34]
Hey there! :)

JK ≈ RS

Scale Factor = 9/7

JK = 56

<u>56</u> · <u>9</u> = <u>504</u>  =  72
 1    7 =   7

Your answer ⇒ B.72

Hope this helps :)
4 0
3 years ago
The points at which the curve changes from curving upward to curving downward are called what
marshall27 [118]

Answer:

Inflection points. It's where the second derivative of the function is equal to zero

Step-by-step explanation:

7 0
3 years ago
How to find the missing numbers in two digit division
abruzzese [7]

Answer:

Divide the first number of the dividend (or the two first numbers if the previous step took another digit) by the first digit of the divisor. Write the result of this division in the space of the quotient. Multiply the digit of the quotient by the divisor, write the result beneath the dividend and subtract it.Jun

Step-by-step explanation:

pls brainlist

3 0
3 years ago
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