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Sliva [168]
2 years ago
14

Explain why the formula for sample variance is different from the formula for population variance. Why is it inappropriate to us

e the formula for population variance in calculating the variance of a sample
Mathematics
1 answer:
Aliun [14]2 years ago
3 0

Step-by-step explanation:

The difference in the formula of population and sample variance can be explained as:

Population variance is said to be the value of variance that is calculated from population data, whereas sample variance refers to the variance calculated from sample data. This is the reason why value of denominator in the formula for variance in case of sample data is ‘n-1’, while it is ‘n’ for population data. Hence, the result of both variance and standard deviation derived from sample data is larger than those found out from population data.

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A town has a population of 13,000 and grows at 5% every year what will the population be after 11 years to the nearest whole num
scoray [572]
This question is based on the concept of
amount of interest. Therefore, 22,234 would be
the population after 11 years, to the nearest
whole number.
Given:
A town has a population of 13000 and grows at
5% every year.
We need to determined the population after 11
years, to the nearest whole number.
We know that,
Formula =A = P(1+ r)
Where, p be the population. r is the rate and t is
the time.
P= 13000,
r= 5%
†= 11
Now put all these values in formula.
We get,
5
A = 13000(1 +
A
= 13000(1 + 0.05)11
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5 0
2 years ago
In a long-jump competition, Connor jumped 160 centimetres.
xeze [42]

Answer:

290 cm

Step-by-step explanation:

There are 100 centimeters in a meter so 1.3m*100 is 130cm

130+160cm is 290cm.

6 0
2 years ago
A gumball machine has 78 gumballs. each person who puts a coin into the machine gets 3 gumballs. after a certain number of peopl
Lesechka [4]
D is the bast answer for this question, but, the equation should be (78-54)/3=p.
8 0
3 years ago
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An experiment involves flipping a coin three times.
steposvetlana [31]

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or 2/3

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because two flips out of 3 all together is 2/3

7 0
2 years ago
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1 A. All master photographers are artists.
Ede4ka [16]

Answer:

A is the appropriate option.

Step-by-step explanation:

The question given is a conditional statement.

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A is the correct option.

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2. Ansel Adams is a master photographer.

Therefore, Ansel Adams is an artist.

7 0
3 years ago
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