Find the mean, variance, and standard deviation of the binomial distribution with the given values of n and p. n = 70, p = 0.8 The mean, μ, is (Round to the nearest tenth as needed.) The variance, o², is. (Round to the nearest tenth as needed.) The standard deviation, o, is (Round to the nearest tenth as needed.)

A normal distribution has a mean of 85.8 and a standard deviation of 4.89. Find the data value corresponding to the value of z given. (Enter your answer to four decimal places.) z = −3.49

Just do 2 and 3 please.

The following table gives the math SAT scores for some recent selected years. Find the average, variance, and standard deviation of each. (Round your answers to four decimal places.) Males 499 502 504 503 498   Females 446 453 455 452 450   Males: mean     variance     standard deviation     Females: mean     variance     standard deviation

Which is NOT a correct statement about the variance and standard deviation?   a. The standard deviation is the sqaure root of the variance   b. The standard deviation is useful when considering how close the data are to the mean   c. The variance is roughly the average sqaured distance from the mean   d. None of above

The variance and the standard deviation are related by the fact that the square root of the variance is equal to the standard deviation. Suppose the variance of the time it takes to complete a bachelor's degree is 0.8. Find the standard deviation. Round your answer to four decimal places.

The following table gives the math SAT scores for some recent selected years. Find the average, variance, and standard deviation of each. (Round your answers to four decimal places.) Males 500 502 498 504 497   Females 446 453 450 454 451   Males: mean     variance     standard deviation     Females: mean     variance     standard deviation     Which group is varying more? femalesmales    cannot be determined

For computing the variance this number is called as the value that is added or subtracted from the most probable value a. accuracy b. mistake c. error d. probable error

Compute the (sample) variance and standard deviation of the data sample. (Round your answers to two decimal places.) −1, 7, 7, 3, 14 Variance: Standard Deviation: