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NISA [10]
3 years ago
7

company that manufactures a popular multivitamin wanted to determine whether their multivitamin had any side effects. For its in

itial study, the company chose 2000 individuals to take one of their multivitamin tablets per day for one year. Scientists from the company surveyed the participants to determine whether they had experienced any side effects. The greatest problem with this procedure is that A) only one brand of vitamin was tested B) the study lasted only one year C) the sample size was not large enough D) no control group was used
Mathematics
1 answer:
MAXImum [283]3 years ago
3 0

Answer:

Option D

Step-by-step explanation:

In this experiment, It would have been scientific to compare the result of the experiment on the experimental group(taking the multivitamin) with the control group (Taking no medicine)

Without a control group, a defined impact of multivitamin over the experimental group cannot be deduced.

Hence, option D is correct

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Mama L [17]

Answer: the answer is C.

Step-by-step explanation:

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3 years ago
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Solve this proportion: 8/x = 2/5. x =
Taya2010 [7]
8/x= 2/5

8•5= 2•x

40=2x

40/2= x

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3 0
3 years ago
The expression 2.85+2.70M gives the taxi fare in dollars for a trip of M miles. On Thursday you got a find Miss Hearst took a ta
horrorfan [7]

<u><em>Answer:</em></u>

Total fair of the two trips was $32.7

<u><em>Explanation:</em></u>

<u>We are given that the expression that taxi fair is:</u>

2.85 + 2.7M where M represents the number of miles

<u>1- For Thursday:</u>

Number of miles covered = M = 6 miles

<u>Substitute with M=6 in the given equation to get the fair on Thursday as follows:</u>

Fair on Thursday = 2.85 + 2.7(6) = $19.05

<u>2- For Friday:</u>

Number of miles covered = M = 4 miles

<u>Substitute with M=4 in the given equation to get the fair on Friday as follows:</u>

Fair on Friday = 2.85 + 2.7(4) = $13.65

<u>3- The total fair:</u>

Total fair = fair on Thursday + fair on Friday

Total fair = 19.05 + 13.65 = $32.7

Hope this helps :)

4 0
3 years ago
Can sb please answer this
Fudgin [204]

Answer:

A

Step-by-step explanation:

A line of best fit needs to match the direction of the points and fit in-between the points as much as possible

C is not the right direction

D is not the right direction

B is to the left of the points

3 0
3 years ago
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Determine whether the underlined value is a parameter or a statistic.
hram777 [196]

Since the value is taken from a population, the value is a parameter.

<h3>Parameter and Statistic:</h3>

  • If the information is taken from a sample, it is called a statistic.
  • If the information is taken from a population, it is called a parameter.

For this problem, the students of the class are the population, as all students are considered for the calculator of the mean, hence the value is a parameter.

More can be learned about parameter and statistic at brainly.com/question/26118332

#SPJ1

4 0
1 year ago
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