Can you please provide calculations

1. The mean score of a college entrance test is 500; the standard deviation is 75. The scores are normally distributed. What percent of the students scored below 320? A) About 50.82% B) About 34.13% C) About 7.86% D) About 0.82%

2. A gumball machine has just been filled with 50 black, 150 white, 100 red, and 100 yellow gumballs that have been thoroughly mixed. Sue and Jim each purchase one gumball. What is the likelihood that both Sue and Jim will get red gumballs? A) 0.50 B) 0.062 C) 0.33 D) 0.75

3. A population consists of all the weights of all defensive tackles on a university's football team. They are Johnson, 204 pounds; Patrick, 215 pounds; Junior, 207 pounds; Kendron, 212 pounds; Nicko, 214 pounds; and Cochran, 208 pounds. What is the population standard deviation(in pounds)? A) About 4 B) About 16 C) About 100 D) About 40

4. A survey of top executives revealed that 35% of them regularly readTime magazine, 20% readNewsweek, and 40% readU.S. News & World Report. A total of 10% read bothTime andU.S. News & World Report. What is the probability that a particular top executive reads eitherTime orU.S. News & World Report regularly? A) 0.85 B) 0.06 C) 1.00 D) 0.65

5. On a very hot summer day, 5% of the production employees at Midland States Steel are absent from work. The production employees are randomly selected for a special in-depth study on absenteeism. What is the probability of randomly selecting 10 production employees on a hot summer day and finding that none of them are absent? A) 0.002 B) 0.344 C) 0.599 D) 0.100