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4 years ago

the average age of men who had walked on the moon was 39 years, 11months, 15days. Is the value aparameter or a statistic?

Mathematics

1 answer:

Softa [21]4 years ago

8 0

Answer:

Parameter

Step-by-step explanation:

We are given the following in the question:

The average age of men who had walked on the moon was 39 years, 11 months, 15 days.

Population and sample:

Population is the collection of all observation for variable of interest or individual of interest.
Sample is a subset for population.

Parameter and statistic:

Any variable or value describing a population is known as parameter.
Any value describing a sample is known as statistic.

Population of interest:

men who had walked on the moon

Value:

average age of men who had walked on the moon

Thus, the give value describes a population and hence, it is a parameter.

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3 years ago

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Rate at which the woman is walking = 7.5 ft/sec
Let us assume the length of the shadow = s
Le us assume the <span>distance of the woman's feet from the base of the streetlight = x
</span>Then
s/5 = (s + x)/12
12s = 5s + 5x
7s = 5x
s = (5/7)x
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ds/dt = (5/7)(dx/dt)
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ds/dt = (5/7) * (7/2)
= (5/2)
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3 years ago