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olga_2 [115]
2 years ago
8

The tar contents of 8 brands of cigarettes selected at random from the latest list released by the federal Trade Commission is a

s follows: 7.3, 8.6, 10.4, 16.1, 12.2, 15.1, 14.5, and 9.3 milligrams. Calculate (
a. The mean;(
b. The variance.
Mathematics
1 answer:
sattari [20]2 years ago
3 0
The mean is 11.7 i don't know the Variance
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YOU WILL GET BRAINLIEST!! 20 POINTS
Mariana [72]

Answer:

Step-by-step explanation:

6⁻︎¹(4⁻︎²)

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2 years ago
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Customers of a phone company can choose between two service plans for long distance calls. The first plan has a 26
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3 years ago
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What is the slope of the line given by the equation y=-1/3x? Entee your answer as an integer or fraction in lowest terms.
Serhud [2]
-1/3

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hope it helped.

6 0
3 years ago
Evaluate. 2−2⋅(12⋅3)−53
klemol [59]
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2−<span><span>2<span>(12)</span></span><span>(3)</span></span></span>−53</span><span> 
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3 0
3 years ago
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Consider all numbers consisting of four different digits all between 1 and 9 . How many of these are odd
Slav-nsk [51]

Answer:

1680

Step-by-step explanation:

Considering repeatition is not allowed.

We can  use permutation to reach to the required answer.

Consider four digits to be placed in four boxes. Now for the number to be odd, unit digit must be odd. Therefore, unit digit can only be filled by 1, 3, 5,7, or 9. That is 5 ways. Now, other three boxes can be filled with 8, 7 and 6 ways respectively.

Therefore, Total numbers = 5×8×7×6 = 1680

7 0
3 years ago
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