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monitta
3 years ago
9

A student conducted a poll of 100 internet users and found the average time spent online per day was 2 hours. The student descri

bed 2 hours as a parameter. The student is incorrect because the value is a numerical measurement describing a characteristic of _____.
a ratio


a sample


a population


quantitative data
Mathematics
2 answers:
Step2247 [10]3 years ago
4 0

In statistics A sample is a part of a population .A sample statistic is any quantity we derive  from a sample taken from a population . A sample refers to a set of observations drawn from a population.

We are given A student conducted a poll of 100 internet users and found the average time spent online per day was 2 hours .Here 2 hours is an observation derived from the set of observations made .So 2 hours is a characterstic of a sample.

The second option a Sample is the right answer.

n200080 [17]3 years ago
3 0
I believe it's B or A Sample. 
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3 years ago
Helpppppp me please
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4 years ago
Hi, I’m really confused if anyone could help me out that would mean a lot?:)
marusya05 [52]

Hey there! :)

Answer:

a) 32 sticks.

b) 5n + 2 sticks.

Step-by-step explanation:

Solve this by finding the pattern.

Pattern # 1 = 7 sticks.

Pattern #2 = 12 sticks

Pattern #3 = 17 sticks.

We can see an increase of 5 sticks within each. We can use this to write an equation:

f(n) = 7 + 5(n-1)

***Where n is the term number

You can simplify the equation to become:

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f(n) = 5n + 2.

Use this equation to solve for pattern # 6:

f(6) = 7 + 5(n-1)

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3 years ago
Fill in the missing information. Tim Worker is doing his budget. He discovers that the average miscellaneous expense is $45.00 w
nlexa [21]

Answer:

P(38.6

And we can assume a normal distribution and then we can solve the problem with the z score formula given by:

z=\frac{X -\mu}{\sigma}

And replacing we got:

z=\frac{38.6- 45}{16}= -0.4

z=\frac{57.8- 45}{16}= 0.8

We can find the probability of interest using the normal standard table and with the following difference:

P(-0.4

Step-by-step explanation:

Let X the random variable who represent the expense and we assume the following parameters:

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And for this case we want to find the percent of his expense between 38.6 and 57.8 so we want this probability:

P(38.6

And we can assume a normal distribution and then we can solve the problem with the z score formula given by:

z=\frac{X -\mu}{\sigma}

And replacing we got:

z=\frac{38.6- 45}{16}= -0.4

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We can find the probability of interest using the normal standard table and with the following difference:

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Seven students each picked 88 flowers. How many flowers did they pick altogether?
Dennis_Churaev [7]

Answer:

7(88)=616

Step-by-step explanation:

8 0
3 years ago
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