# Statistics mathematics

**Question description**

The ages of the members of a gym have a mean of 44 years and a standard deviation of 12 years. What can you conclude from chebyshev's theorm about the percentage of gym members aged?

The mean age of lead actress from the top ten grossing movies of 2010 was 29.6 with a standard deviation of 6.35 years. Assume the distribution of the actresses' age is approximately inimical and symmetric. Between what two values would you expect to find about 95% of the lead actresses' ages? 16.9-42.3, 10.55-48.65, 23.25-35.95, or none.

Find the score corresponding to the given value and use the z-score to determine whether the value is unusual. Consider a score to be unusual if it's z-score is less than -2.00 or greater than 2.00. Round the z-score to the nearest tenth. A weight of 224 pounds among a population having a mean weight of 158 pounds and a standard deviation of 23.5 pounds.

## Tutor Answer

Brown University

1271 Tutors

California Institute of Technology

2131 Tutors

Carnegie Mellon University

982 Tutors

Columbia University

1256 Tutors

Dartmouth University

2113 Tutors

Emory University

2279 Tutors

Harvard University

599 Tutors

Massachusetts Institute of Technology

2319 Tutors

New York University

1645 Tutors

Notre Dam University

1911 Tutors

Oklahoma University

2122 Tutors

Pennsylvania State University

932 Tutors

Princeton University

1211 Tutors

Stanford University

983 Tutors

University of California

1282 Tutors

Oxford University

123 Tutors

Yale University

2325 Tutors