100 POINTS PLS HELP!!!!!!!!!!!!!!!! GIVING BRAINLIEST TO FIRST CORRECT RESPONSE!

Mathematics

2 answers:

qaws [65]2 years ago

8 0

Answer:

B.) 4

Step-by-step explanation:

mark me brainliest!!

Hunter-Best [27]2 years ago

6 0

B step by step because they at ta angle

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What is the probability of getting an odd number 1-10?

Annette [7]

Answer:

1/2 - Half of the numbers are odd

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3 years ago

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pychu [463]

The answer is 3.92%

Explanation

Do 2 divided by 51
0.03921

Multiply your answer by 100
3.9215

Round to the nearest tenth
3.92%

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3 years ago

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Nadya [2.5K]

Answer:

1,2,3,2,2

Step-by-step explanation:

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3 years ago

The average estimated hours a person in the United States spent playing video games per year from 2002 to 2012 were 71, 80, 82,

ozzi

Answer:

Population variance 579

Population standard deviation 24

Step-by-step explanation:

The average estimated hours a person in the United States spent playing video games per year from 2002 to 2012 were 71, 80, 82, 78, 80, 91, 107, 121, 125, 131, and 142.

The population variance is given by:

$\sigma^2=\frac{\sum(x-\mu)^2}{n}$

$\mu=\frac{71+80+82+78+80+91+107+121+125+131+142}{11}$

$\mu=\frac{1108}{11}$

This implies that:

$\sigma^2=\frac{(71-\frac{1108}{11})^2+(80-\frac{1108}{11})^2+(82-\frac{1108}{11})^2+(78-\frac{1108}{11})^2+(80-\frac{1108}{11})^2+...+(142-\frac{1108}{11})^2}{11}$