Sum divided by count. Add up all the numbers and divide it by how many numbers it is.
By solving the equation
1/2 +x =4/7
x = 4/7 -1/2
x= 1/14
1215 dollars is the right answer. Plz give brainliest!
Answer:
c) t-test of population mean
Explanation:
The t-test statistic is used in hypothesis testing. Here we would use a one sample t test to test our hypothesis. The one sample t test measures the statistical difference between the hypothesized mean and the sample mean. In a one sample t test or single sample t test, a test variable is measured against a test value.
Example we compare our test variable to the hypothesized mean value $75 above.
The t test is used instead of z score when standard deviation is unknown.
Using the t test, we either accept or reject the null hypothesis given alternative hypothesis.
Answer:
all numbers natural,integer,rational,real algebra comes under real numbers
except the equations with alphabets
