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qaws [65]
3 years ago
8

Let's assume you are conducting an experiment to determine the effect of a new drug on the incidence of epileptic seizures. You

select 20 epileptics from the 150 epileptics being treated at a nearby hospital and administer the drug to them. You record the number of seizures in each of the 20 subjects for one month. The 20 subjects constitute _________.
Mathematics
1 answer:
givi [52]3 years ago
8 0

Answer:

The 20 subjects constitutes the sample

Step-by-step explanation:

Given

Total = 150

Selected = 20

Required

What does 20 represent?

The 150 patients being treated is the population of the study. When a certain amount is selected from a population, the selected is referred to as a sample.

So, this means that, 20 represents sample of the study.

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What is 9x+3=21<br> What is the value of x=
valentinak56 [21]

Answer:

2

Step-by-step explanation:

4 0
3 years ago
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a jacket originally sold for $45. this week it went on sale for 20% off. what is the discount and what is the sales price?
Strike441 [17]

Answer:

discount = 9

new price = 36

Step-by-step explanation:

The discount is the price times the discount percent

45 * 20%

Change to decimal form

45*.20

9

The new price is the original price minus the discount

45-9 = 36

4 0
3 years ago
The sum of three numbers is 94. The first number is six less than the second. The third number is three times the second. What a
Vika [28.1K]

Answer:

14, 20, 60

Step-by-step explanation:

Please let me know if you want me to add an explanation as to why this is the answer/how I got this answer. I can definitely do that, I just wouldn’t want to write it if you don’t want me to :)

3 0
3 years ago
Read 2 more answers
2
svet-max [94.6K]

Answer:

 B.  4200

Step-by-step explanation:

A suitable calculator can add the terms for you. (See attached)

__

The first term is 69, and the common difference is 75-69 = 6. The general term is ...

  an = a1 +d(n -1)

  an = 69 +6(n -1)

Then the 28th term is ...

  a28 = 69 +6(27) = 231

The average term is (a28 +a1)/2 = (231 +69)/2 = 150.

The sum is the number of terms multiplied by the average term:

  sum = 28×150= 4200

5 0
2 years ago
Please help I’m stuck on this question, I’ll give brainliest
Anit [1.1K]

Answer:

49.55

Step-by-step explanation:

okay so, what we do is
Get 15% of 23
Get 15% of 32

15% of 23 is 3.45

15% of 32 is 4.80

Now we do

23 - 3.45

32 - 4.80

23 - 3.45 is 19.55

32 - 4.80 is 27.2

This is the part im not 100% on

27.20 + 19.55 is 46.75

6% of 46.75 is 2.80

46.75 + 2.80 is 49.55

Now i dont know if its that way or if you apply the 6% sale tax to each individual item

4 0
2 years ago
Read 2 more answers
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