4 years ago

Pie charts 3 questions

Mathematics

1 answer:

Y_Kistochka [10]4 years ago

3 0

A. Research

B. 50%

C. 15%

Hope this helps! Comment if you want a better explanation, have questions, or concerns! :)

You might be interested in

Terri wrote the system of linear inequalities.

tiny-mole [99]

Answer:

Step-by-step explanation:

A,b,d

6 0

3 years ago

Ill mark brainlist pllsss help

olchik [2.2K]

Answer:

octagon

is the correct answer of this question

it has eight side

hope it helps

3 0

3 years ago

Read 2 more answers

A recent poll of 1500 new home buyers found that 60% hired a moving company to help them move to their new home. Find the margin

Mrac [35]

Answer:

The margin of error M.O.E = 2.5%

Step-by-step explanation:

Given that;

The sample size = 1500

The sample proportion $\hat p$ = 0.60

Confidencce interval = 0.95

The level of significance ∝ = 1 - C.I

= 1 - 0.95

= 0.05

The critical value:

$Z_{\alpha/2} = Z_{0.05/2} \\ \\ Z_{0.025} = 1.96$ (From the z tables)

The margin of error is calculated by using the formula:

$M.O.E = Z_{\alpha/2} \times \sqrt{\dfrac{\hat p(1 -\hat p)}{n}}$

$M.O.E = 1.96 \times \sqrt{\dfrac{\hat 0.60(1 -0.60)}{1500}}$

$M.O.E = 1.96 \times \sqrt{\dfrac{0.24}{1500}}$

$M.O.E = 1.96 \times \sqrt{1.6 \times 10^{-4}}$

M.O.E = 0.02479

M.O.E ≅ 0.025

The margin of error M.O.E = 2.5%

8 0

3 years ago

The old price of a 24" television is $499.00. It has been marked up 12%. What is the new price?

BartSMP [9]

Answer:

$558.88

Step-by-step explanation:

6 0

3 years ago

There are about 4,000,000 students attending school, kindergarten through Grade 12, in New York. The average number of students

Semenov [28]

Answer:

Step-by-step explanation:

big number

5 0

3 years ago

Read 2 more answers