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yaroslaw [1]
3 years ago
5

jean polled a random sample from a population and calculated a sample statistic. Jean can use this statistic to draw an inferenc

e about what? explain why which letter choice is the right answer. A. The corresponding sample parameter B. the population size C. The corresponding population statistic D. The corresponding population parameter
Mathematics
1 answer:
PilotLPTM [1.2K]3 years ago
6 0
Since Jean was using a calculated sample statistic from a polled random sample of a population, I can say that this statistic can infer about the corresponding population parameter, and the answer for this would be option D. Hope this answer helps.
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The ABC Book Club charges a $40 monthly fee, plus $2 per book read in that month. The Easy Book Club charges a 35$ monthly fee,
MAVERICK [17]
The expression for the cost of the ABC Book Club is 2x + 40. The expression for the cost of the Easy Book Club is 3x + 35. To find when the total charge for both book clubs is equal, the two expressions must equal each other. (x = the number of books read)

2x + 40 = 3x + 35

Subtract 35 from both sides.

2x + 5 = 3x

Subtract 2x from both sides.

5 = x

So, the total charge for each club is equal when 5 books are read.
5 0
2 years ago
What is 9/10 of 7 inches
PSYCHO15rus [73]
It is equivalent to 16 cm
4 0
3 years ago
what is the final amount of 17.50 that is put into a saving account with 4 annual interest rate compounded yearly for 25 years?
pickupchik [31]
To find the total amount, you will use the formula for finding compounded interest.  This means you will be paid interest on top of the interest you have earned each year.

A = P(1 + r)^nt
P stands for the principal.
r is the interest rate when compounded annually
nt is the number of years

A = 17.50(1 + 0.04)^25
A = $46.65

This person would have $46.65 after 25 years.
6 0
3 years ago
Given ​f(x)=x^2+12x+26​.
MA_775_DIABLO [31]

Answer:

f(x) =  (x+6)² - 10

Step-by-step explanation:

To write the equation in vertex form we, we need to use completing square method.

f(x) = x²+ 12x + 26 = (x² + 2*x*6 + 6²) - 6² + 26 = (x+6)² -36 + 26 =

= (x+6)² - 10

f(x) =  (x+6)² - 10

7 0
2 years ago
Andy has two similar conical hats, Hat A and Hat B. The diameter of Hat A is 18 inches, and the diameter of Hat B is 9 inches.
valkas [14]
The answer is 2:1 because at first your ratio would be 18:9 but if you divide that by 9 (for simplifying purposes) than its 2:1
5 0
3 years ago
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