Answer:
Step-by-step explanation:
Hint- First we have to calculate the mean and standard deviation of the sample and then applying formula for confidence interval we can get the values.
Mean of the sample is,
Standard deviation of the sample is,
The confidence interval will be,
Here,
Z for 95% confidence interval is 1.96, and n is sample size which is 24.
Putting the values,
Confidence interval is used to express the degree of uncertainty associated with a sample.
95% confidence interval means that if we used the same sampling method to select different samples and calculate an interval, we would expect the true population parameter to fall within the interval for 95% of the time.
Answer:
The factor form of given expression is 3(x+8) so the required number is 3.
Step-by-step explanation:
The given expression is
Write the factors of each term.
In both terms, 3 is a common factor.
Take out the common factor 3.
The factor form of given expression is 3(x+8). The factor (x+8) is given, therefore the required number is 3.
Answer:
Step-by-step explanation:
To find the surface area of the prism, we find the area of each similar faces and multiply by 2 and then add all together
Area of square faces
Area of parallelogram faces
Area of the rectangular faces;
The total surface area of the prism is 20+16+32=68 square meters
(0, -5) and (0, 3)
Is the answer to question 1
and i think that -4 is the answer to question 2