State the requirements to perform a goodness-of-fit test. Choose the correct answer below. Select all that apply. A. at least 90% of expected frequencies greater than or equals10 B. at least 80% of expected frequencies greater than or equals10 C. all expected frequenciesgreater than or equals5 D. at least 80% of expected frequencies greater than or equals5 E. at least 90% of expected frequencies greater than or equals5 F. all expected frequenciesgreater than or equals1

C. all expected frequencies is greater than or equals5

Explanation: The goodness of fit test is mainly used to test if sample data fits a distribution from a certain population.

The expected value for each cell needs to be at least five in order for you to use this test, Not less than 5, but greater than 5. Which is why option C is correct for performing a goodness-of-fit test.

Other requirements includes;

• The sampling method is a simple random sampling.

• The variable under study is categorical.

see earlier

initial speed when it is dropped is 150 ft/s

now at the same moment the acceleration due to gravity is perpendicular to its velocity

so as we know that

now we have centripetal acceleration a = 32 ft/s^2 as its perpendicular to velocity

while tangential acceleration at the same moment will be zero

so

now radius of curvature is given as

so the radius of curvature just after it is dropped is 703.125 ft