1, Which of the following is NOT a property of a probability distribution?

A, Each probability must be between 0 and 1.

B, The outcomes listed must be disjoint.

C, The probabilities must total 1.

D, The outcomes listed must be independent.

2, According to the College Board, SAT mathematics scores from the 2015 school year for high school students in the United States were normally distributed with a mean of 511 and a standard deviation of 120.

Determine the probability that a randomly chosen high school student who took the SAT in 2015 will have a mathematics SAT score more than 700 points.

Give the answer as a percentage rounded to one decimal place.

___________

3, Birth weights of newborn babies follow a normal distribution with mean of 3.39 kg3.39 kg and standard deviation of 0.55 kg.0.55 kg. Use either the Rossman / Chance Normal Probability Calculator or Excel / Sheets to find the probability that a newborn baby weighs less than 2.43 kg2.43 kg or more than 4.35 kg.4.35 kg. Give the answer as a percentage rounded to two decimal places.

probability:---___________

4, Suppose that Jason recently landed job offers at two companies. Company A reports an average salary of $51,500 with a standard deviation of $2,175. Company B reports an average salary of $46,820 with a standard deviation of $5,920. Assume that salaries at each company are normally distributed. Jason's goal is to secure a position that pays $55,000 per year. What are the zscores for Jason's desired salary at Company A and Company B? round the answers to two decimal places.

Company A :__________

Company B :-_________

At which company is Jason more likely to obtain his desired salary of $55,000 per year?

A, Company B, because the score for $55,000 at Company B is less than the zscore for $55,000 at Company A.

B, Company A, because the score for $55,000 at Company A is less than the zscore for $55,000 at Company B.

C, Company B, because the score for $55,000 at Company B is greater than the zscore for $55,000 at Company A.

D, Company A, because the score for $55,000 at Company A is greater than the zscore for $55,000 at Company B.

5,

0.1 -2 O No edit graph on desmos -0.1 O Discrete, because the x-axis values are whole numbers. O Discrete, because the data values are discrete. O Continuous, because the bins have a width of 0.50. Continuous, because the x-axis values can be any number.20 30 40 50 60 Number of Succeses 0:05 edit graph on desmos Discrete, because the number of successes are discrete. O Discrete, because the x-axis labels are whole numbers. Continuous, because the bins are really skinny. Continuous, because the n values can be any number.The variable graphed below is which type of variable? 0:2 Probability .0.15 0.1- 0:05 20 30 40 50 60 Number of Succceses