3 years ago

I don't know how to do this it is hard

Mathematics

1 answer:

Solnce55 [7]3 years ago

3 0

(-4) means that it would be +4

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On a recent quiz, the class mean was 70 with a standard deviation of 2.1. Calculate the z-score (to 4 decimal places) for a pers

Igoryamba

The equation to find a z score is (x- mean)/(standard deviation)

So, in this case the equation would be
(76-70)/(2.1)

For,
X=76
Mean=70
Standard Deviation= 2.1

After solving we find that the z score equals 2.85714

or

2.8571

5 0

3 years ago

Simplify the ratio 16:12

joja [24]

Your answer would be 4:3

5 0

3 years ago

Need help ASAP! I don’t understand this please help

lana [24]

Answer:

Already answered.

Step-by-step explanation:

brainly.com/question/16954459

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3 years ago

(Please give the step to step procedure) Due to short supply in the market a shopkeeper raises the price of a cycle by 5% above

Tatiana [17]

Answer:

4000

Step-by-step explanation:

let the marked price of the cycle be x

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3 years ago

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A number to the 10th power divided by the same number to the 7th power equals 216

VashaNatasha [74]

Answer: 5

Step-by-step explanation: Let x = the number

x^10 ÷ x^7 = 125

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3 years ago

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