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andreyandreev [35.5K]
3 years ago
12

1. State whether each of the following questions can or cannot be used to collect statistical information. Provide an explanatio

n for each.
(a) How many hours of homework do you do?
Mathematics
1 answer:
Nuetrik [128]3 years ago
8 0
The Answer would be 4
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Let p be the population proportion for the following condition. Find the point estimates for p and q. In a survey of 1226 adults
weeeeeb [17]

Answer:

(a)0.3303

(b)0.6697

Step-by-step explanation:

Point estimation is the use of sample data to calculate a single value which serves as a best estimate of a given unknown population parameter.

Total Sample=1226

Number who said that they were not confident that the food they eat in country A is safe=405.

The point estimate of those who said that they were not confident that the food they eat in country A is safe is given as \^{p}

(a)Point Estimate for p,

\^{p}=\frac{405}{1226} =0.3303

(b)Point estimate for q, \^{q}=1- (point estimate for p)

=1-0.3303

=0.6697

8 0
3 years ago
Give 1 pair of Vertical and 1 pair of Supplementary angles
mojhsa [17]

Solution:

Vertical angles are a pair of opposite angles formed by intersecting lines. re vertical angles. Vertical angles are always congruent.

These two angles (140° and 40°) are Supplementary Angles because they add up to 180°:

Notice that together they make a straight angle.

Hence,

From the image

The following pairs form vertical angles

\begin{gathered} \angle1=\angle3(vertical\text{ angles)} \\ \angle2=\angle4(vertical\text{ angles)} \\ \angle5=\angle7(vertical\text{ angles)} \\ \angle6=\angle6(vertical\text{ angles)} \end{gathered}

Hence,

One pair of the vertical angles is ∠1 and ∠3

Part B:

Two angles are said to be supplementary when they ad together to give 180°

Hence,

From the image,

The following pairs are supplementary angles

\begin{gathered} \angle5+\angle6=180^0(supplementary\text{ angles)} \\ \angle5+\angle8=180^0(supplementary\text{ angles)} \\ \angle7+\angle8=180^0(supplementary\text{ angles)} \\ \angle6+\angle7=180^0(supplementary\text{ angles)} \\ \angle1+\angle2=180^0(supplementary\text{ angles)} \\ \angle1+\angle4=180^0(supplementary\text{ angles)} \\ \angle2+\angle3=180^0(supplementary\text{ angles)} \\ \angle3+\angle4=180^0(supplementary\text{ angles)} \end{gathered}

Hence,

One pair of supplementary angles is ∠5 and ∠6

8 0
1 year ago
Of the total amount of available water on the earth, what percent is usable?
prohojiy [21]
Only 20%of earths water is useable
8 0
3 years ago
A restraint has one type of lemonade that is 12% sugar and another that is 7% sugar. How many gallons of each type does the rest
Xelga [282]

Answer:

D

Step-by-step explanation:

I have answers to whole packet:

1.D

2.A

3.C

4.D

5.C

6.D

7.A

8.C

9.A

10.B

11.A

12.A

13.A

14.B

15.A

16.B

17.A

18.A

19.B

20.C

21.A

22.A

23.D

24.B

7 0
3 years ago
What is the value of x?
ASHA 777 [7]
The answer is 20

the scale factor is 1.25 (to find that out do 12.5/10) then multiply 16 by 1.25 and you get 20.
7 0
2 years ago
Read 2 more answers
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