We choose 500 numbers uniformly at random from the interval [1.5, 4.8].

(a) Approximate the probability of the event that less than 65 of the numbers start with the digit 1.
(b) Approximate the probability of the event that more than 160 of the numbers start with the digit 3.

walter needs to make at least 5 more cookies but no more than 40. 5 ≤ x ≤ 40

step-by-step explanation:

20 ≤ x + 15 ≤ 55

subtract 15 from all parts

20-15 ≤ x + 15-15 ≤ 55-15

5 ≤ x ≤ 40

this means how many more cookies he has to make

walter needs to make at least 5 more cookies, but no more than 40 cookies; 5 ≤ x ≤ 40

the probability that a bird is green (.30) is true

step-by-step explanation:

70.30

step-by-step explanation: