A recent study in Central City Find P (A or B) if P(A) 0.6, found the correlation coefficient P(B) 0.2, P(A | B) 0.3, and between the number of trash cans P(A and B) 0.1? and number of crimes committed over a period of 30 years was a. 0.5 0.872. Does this mean that and b. 0.7 increase in the number of trash c. 0.8 cans causes the number of crimes d. 0.9 to increase? Explain your answer. Find P(A and B) if P(A) 0.7, P(A│B) 0.3 and P(B│A) 0.1. Find the 23rd term of the sequence -2, -8, -14, -20,… The government took a sampling of recruits that recently joined the military to help identify the effectiveness of the various recruiting efforts. What is the probability that a recruit is in the Air Force and Communications? a. 115/250 b. 20/55 c. 20/60 d. 20/250 In a normal distribution, what percentage of values fall within 1 standard deviation of the mean? a. 34% b. 68% c. 95% d. 99.7%
Find P (A or B) if P(A) 0.6, P(B) 0.2, P(A | B) 0.3, and P(A and B) 0.1? a. 0.5 b. 0.7 c. 0.8 d. 0.9 Find P(A and B) if P(A) 0.7, P(A│B) 0.3 and P(B│A) 0.1. The government took a sampling of recruits that recently joined the military to help identify the effectiveness of the various recruiting efforts. What is the probability that a recruit is in the Air Force and Communications? a. 115/250 b. 20/55 c. 20/60 d. 20/250 In a normal distribution, what percentage of values fall within 1 standard deviation of the mean? a. 34% b. 68% c. 95% d. 99.7% A recent study in Central City found the correlation coefficient between the number of trash cans and number of crimes committed over a period of 30 years was 0.872. Does this mean that and increase in the number of trash cans causes the number of crimes to increase? Explain your answer. Find the 23rd term of the sequence -2, -8, -14, -20,…
Honors%20PreCalculus%20-Vera,%20Claudia%202018-2019.docx