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2 years ago

There are 2 kids of the age 14 what is the percentage of the students that are 14?

Mathematics

2 answers:

Naddik [55]2 years ago

8 0

Step-by-step explanation:

yess 7%is the right answer

hope it helps

lys-0071 [83]2 years ago

4 0

Answer:

7% my answer i think if im mistake please dont report me

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-3x -3y = 3 y = -5x - 17

tester [92]

Answer:

x=-4 and y=3

Step-by-step explanation:

-3x-3(-5x-17)=3

-3x+15x+51=3

12x=-48

x=-4

y=-5x-17

y=20-17

y=3

6 0

2 years ago

Read 2 more answers

20 pts to whoever helps!!

Goshia [24]

Answer:

Step-by-step explanation:

Becaus it is

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3 years ago

40% of oatypop cereal boxes contain a prize Hannah plans to keep buying cereal until she gets a prize what is the probability Ha

stepan [7]

Answer:

Step-by-step explanation:

took the test

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2 years ago

The probability distribution for a

Yanka [14]

There are only two possible outcomes in the table that satisfy x ≤ -3; either x = -5 or x = -3. Then

P(x ≤ -3) = P(x = -5) + P(x = -3) = 0.17 + 0.13 = 0.3

5 0

2 years ago

The distribution of scores on a recent test closely followed a Normal Distribution with a mean of 22 points and a standard devia

maksim [4K]

6.68% of the students scored at least 19 points on this test while the 85 percentile has a test score of 24.08 points

The z score is used to determine by how many standard deviations the raw score is above or below the mean. The z score is given by:

$z=\frac{x-\mu}{\sigma} \\\\where\ \mu=mean.\sigma=standard\ deviation, x=raw\ score\\\\Given\ that\ mean(\mu)=22,standard \ deviation (\sigma)=2\\\\For\ x>19:\\\\z=\frac{22-19}{2}=1.5$

P(x > 19) = P(z > 1.5) = 1 - P(z < 1.5) = 1 - 0.9332 = 0.0668

6.68% of the students scored at least 19 points on this test

b) 85 percentile corresponds to a z score of 1.04

$z=\frac{x-\mu}{\sigma}\\\\1.04 =\frac{x-22}{2} \\\\2.08=x-22\\\\x=24.08$

The 85 percentile has a test score of 24.08

Find out more at: brainly.com/question/25012216

7 0

3 years ago