Three unbiased coins are tosses simultaneously. X represents the number of tails obtained. Calculate the probability of each of the elements of X

If 20% of all manually filed returns contain errors, and 0.05% of all electronically filed returns contain errors, how much more likely is a manual filer to make an error than an electronic filer? a. 40,000 times more likely b.

10% of the students in a school like the color purple. 162 students don't like the color purple. How many students are in the school?

If f (x) = 4x-x^2, find the square root of f (3/2)

Shirts are onsale at 3 for $15.50. how many shirts can you buy with $139.50.

Which of the following is NOT a conclusion of the Central Limit Theorem? Choose the correct answer below. A. The mean of all sample means is the population mean mu. B.

A football player runs 10.7 m/s toward the end zone. If he runs for 3.7 seconds how far does he get?

The ends of a pipe when measured with a tape measure that has marks every millimeter are exactly at the 0 mark and the 15 meter mark. how would you record this measurement keeping the correct number of significant figures.

Solve for n. n+4+10=25n+4+10=25

Jack wants to buy a pair of trousers for $60 when he went to the store he found that the prices marked down by 20% how much do they cost now

Cassidy went to the movies with some friends. The tickets cost $6.50 each, and they spent $17.50 on snacks. The total amount paid was $63.00. Solve the equation 63 = 6.50p + 17.50 to determine how many people went to the movies.