The distribution of the lengths of a commercially caught fish is bell-shaped with mean 24cm and standard deviation 4 cm. 500 fish are caught. Approximately how many of them will have lengths between 20 and 32 cm?

The sum of the product of 4 and x and the product of 7 and y is 61. the sum of the product of 12 and x and the product of 21 and y is 61. what are the values of x and y?

This is the number of parts out of 100, the numerator of a fraction where the denominator is 100. submit

Determine the number of outcomes in the event. decide whether the event is a simple event or not. upper a computer is used to select randomly a number between 1 and 9 comma inclusive. event upper b is selecting a number greater than 4. event upper b has nothing outcome(s). is the event a simple event? (yes or no) because event upper b has (fewer than, exactly, more than) one outcome.