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Mamont248 [21]
3 years ago
14

A simple random sample of ten people is taken from the set of all registered voters in a given district to determine their avera

ge age. Which of the following is a reason why you can not make a statistical inference on the population?
Mathematics
2 answers:
zepelin [54]3 years ago
7 0

Answer:

The sample size is not appropriate.

The population isn’t given to be approximately normal.  And for the following question, "A convenience sample of forty people is taken from a population. Which of the following is a reason why you can not make a statistical inference on the population?" The answer is The wrong sampling method was used.

Fudgin [204]3 years ago
5 0

Answer:

Answers are : (1st & 2nd choices)

• The sample size is not appropriate.

• The population isn't given to be approximately normal.

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You are really excited to have found a Puch Maxi Moped from the mid Eighties, and the spring weather is making you want to get o
AlexFokin [52]

Answer:

<u>We should add 1.2 fluid ounces of oil </u>

Correct statement and question:

You are really excited to have found a Puch Maxi Moped from the mid Eighties, and the spring weather is making you want to get out and ride it around. It doesn't run on straight gasoline, you have to mix the oil and gas together in a specific ratio of 2.4 fl. oz. of oil for every gallon of gasoline. You have 2 quarts of gas. How much oil should you add?

Source:

https://www.chegg.com/homework-help/questions-and-answers/really-excited-found-puch-maxi-moped-mid-eighties-spring-weather-making-want-get-ride-arou-q38287224

Step-by-step explanation:

1. Let's review the information given to us to answer the question correctly:

Ratio = 2.4 fl. oz. of oil for every gallon of gasoline

Amount of gas you have = 2 quarts

2. How much oil should you add?

Let's recall that 1 liquid gallon = 4 liquid quarts, therefore:

Ratio = 2.4 fluid ounces of oil for every 4 quarts of gasoline

Replacing the with the real amount of gas we have:

Ratio = 1.2 fluid ounces of oil for every 2 quarts of gasoline )dividing by 2 the oil amount and the gas amount)

<u>We should add 1.2 fluid ounces of oil </u>

7 0
3 years ago
Rationalize the denominator of the fraction and enter the new denominator below.<br><br> 8/2-√12
Andrei [34K]

8/(2-√ 12) Both sides multiplied by (2+√ 12)

16+8√ 12/4-12

-(16+8√ 12)/8

The new denominator is 8 and the fraction has a negative sign

8 0
3 years ago
What is the least common multiple of 21 and 25?
Julli [10]

Answer:

LCM(21,25) = ( 21 × 25) / 1

LCM(21,25) = 525 / 1

LCM(21,25) = 525

Step-by-step explanation:

Mark me brainlist

7 0
3 years ago
Read 2 more answers
During the summer, every student became 5% taller. Matt was x before summer, after summer he was 105cm.
nadezda [96]

Short answer: 100

I assume you want to find x.

We want an equation that says that x is equal to 105cm, minus that 5 percent, because that is his height before the 5% was added. That looks like:

x + 0.05x = 105

           (0.05 is 5% in decimal form, which is necessary in equations like this).

x + 0.05x = 1.05x

1.05x = 105.

Isolate x by dividing both sides by 1.05

1.05x / 1.05 = x, 105 / 1.05 = 100

x = 100, so he was 100cm tall before summer

My original answer was 99.75. This is wrong because I used the 5% of 105, which is wrong because in the question it says his original height (which is x) had 5% added to it. So its 5% of x, not 5% of 105. This changes the whole equation.

3 0
3 years ago
72. Sophia has been at her job for 7 yearsShe earns $4,720 per month. She paysher credit card in full every month. Shehas made 2
stiks02 [169]
What are the answer choices?
4 0
4 years ago
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