In a certain state, the daily amounts of industrial waste are normally distributed, with a mean of 9,000 tons and a standard deviation of 1,000 tons. Find the probability that on a randomly selected day the amount of industrial waste is less than 7,000 tons. Use a table of the standard normal distribution to solve the problem. Round your answer to four decimal places.
?
A. 0.9772
B. 0.1836
C. 0.7936
D. 0.0228
E. 0.7720
Answer: D
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The circle graph shows the results of the student council presidential election. The complete circular area represents 100% of the votes.The circle graph shows what percent of the vote each person received.Who got the fewest votes?
A. Ming B. Gina C. Jim D. Ben
Simplify the complex fraction.
A.
B. -
C. 46
D.
Find the missing angle measure.
A. 119° B. 151° C. 29° D. 61°
Find the mean, median, and mode for the table. The table shows the distribution of households, according to the number of motor vehicles per household. Number ofProportion ofmotor vehicleshouseholds00.1610.2220.3830.1440.095 or more0.01?
A. mean is 1.84; median is 2; mode is 2 B. mean is 1.79; median is 0; mode is 4 C. mean is 1.80; median is 1; mode is 1 D. mean is 1.81; median is 2; mode is 2 E. mean is 1.81; median is 3; mode is 2