Suppose that a random variable \( Z \) has a standard normal distribution. Use a standard normal table the probability that \( Z \) is between -0.67 and 1.67 . Give your answer in decimal form, precise to at least three decimal places.

A basketball player makes \( 70 \% \) of his free throws. If he attempts 20 free throws, what is the probability that he makes at least 15 of them? (Hint: this is a binomial distribution problem with the following parameters: \( n=20 \) as the number of trials and \( p=0.7 \) as the probability of success on a single trial) a. 0.5122 b. 0.3455 c. 0.416 d. 0.1055

In rolling a two six sided dies, what is the probability that the sum of the numbers turned up is \( \geq 7 \)

here is a spinner with 15 equal areas, numbered 1 through 15 . If the spinner is spun one time, hat is the probability that the result is a multiple of 3 and a multiple of 4 ?

In un'urna ci sono 3 palline rosse e 2 blu. Se estraiamo una pallina rossa, qual è la probabilità di estrarre poi una seconda pallina rossa?

A widget company produces 25 widgets a day, 5 of which are defective. Find the probability of selecting 5 widgets from the 25 produced where none are defective. A. \( \frac{2584}{8855} \) B. \( \frac{1}{5} \) C. \( \frac{1}{3125} \) D. \( \frac{1}{10626} \)