2 years ago

Tell me the answer please

Mathematics

1 answer:

Colt1911 [192]2 years ago

6 0

Answer:

a. 13,17,21

b. an=a1+(n-1)4

c. no

Step-by-step explanation:

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Refer to the previous exercise. The researchers wanted a sufficiently large sample to be able to estimate the probability of pre

Maru [420]

Answer:

The large sample n = 117.07

Step-by-step explanation:

Step(i):-

Given that the estimate error (M.E) = 0.08

The proportion (p) = 0.75

q =1-p = 1- 0.75 =0.25

Level of significance = 0.05

Z₀.₀₅ = 1.96≅ 2

Step(ii):-

The Marginal error is determined by

M.E = $\frac{Z_{0.05} \sqrt{p(1-p)} }{\sqrt{n} }$

$0.08 = \frac{2 X \sqrt{0.75(1-0.75)} }{\sqrt{n} }$

Cross multiplication , we get

$\sqrt{n} = \frac{2 X \sqrt{0.75(1-0.75)} }{0.08 }$

√n = $\frac{2 X0.4330}{0.08} = 10.825$

squaring on both sides , we get

n = 117.07

Final answer:-

The large sample n = 117.07

6 0

3 years ago

Square tablecloth has a perimeter of 12 feet what is the area of the tablecloth

Marizza181 [45]

To find the area of a square, do base times height.

If it is a square then all the sides are equal. Take 12 and divide it by 4 to find out that each side is 4 feet.

Base-4
Height-4

(4)(4)=16

6 0

3 years ago

Please answer correctly! I will mark Brainliest!

Pie

Answer:

its 60 all around

Step-by-step explanation:

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3 years ago

What is the answer to 90 is 45% of what?

ANTONII [103]

..... 40.5 ...............

7 0

3 years ago

Read 2 more answers

Find the solution of:

iogann1982 [59]

6 / (x+1) = 1/2
x +1 = 12
x = 11
Answer is d ....(11)

5 0

3 years ago