The standard normal curve is symmetrical.
a. true
b. false

Brian's school locker has a three-digit combination lock that can be set using the numbers 5 to 9 (including 5 and 9), without repeating a number. the probability that the locker code begins with a prime number is %. the probability that the last digit of the locker code is an odd number is %.

What characteristic of the basin that feeds the congo river system affects movement in central africa? a. the center of the basin is a dense rain forest. b. it is the center of ethnic conflict in the area. c. wildlife on the savanna makes it too dangerous to travel. d. the basin is surrounded by desert.

Which statement about new zealand’s economy is not true? a. the economy is largely based on agriculture. b. the economy in cities depends on manufacturing. c. the economy is largely based on tourism. d. the economy depends partially on livestock. (gradpoint)