1. Suppose that you have 7 cards. 5 are blue and 2 are orange. The 5 blue cards are numbered 2, 4, 6, 8, and 9. The 2 orange cards are numbered 2 and 7. The cards are well shuffled. You randomly draw one card.

• B = card drawn is blue
• E = card drawn is even numbered

Calculate P(B and E).

a)2/5

b)4/5

c)4/7

d)5/7

Based on data from the US Census Bureau the average age of US residents is 36.31 with a standard deviation of 21.99. The data is normally distributed. The notation for the distribution is:

X ~ B(36.31, 22)

X ~ N(36.31, 21.99)

X ~ N(21.99, 36.31)

X ~ U(0, 36.31)