A normal random variable X is having mean 99 and standard deviation 5.78. What is p(X>78)? Round to 4 decimals
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A normal random variable X is having
What is p(X>78)?
Round to 4 decimals
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- The amount of calories consumed by customers at the Chinese buffet is normally distributed with mean 2867 and standard deviation 683. One randomly selected customer is observed to see how many calories X that customer consumes. Round all answers to 4 decimal places where possible. The Piggy award will given out to the 2% of customers who consume the most calories. What is the fewest number of calories a person must consume to receive the Piggy award? calories. (Round to the nearest calorie)The probability of being in a car accident when driving more than 10 miles over the speed limit in a residential neighborhood is .05. Of the next 893 cars that pass through a particular neighborhood, what are the first and third quartiles for the number of car accidents in this neighborhood? (Round standard deviation and your final answers to 2 decimal places.) Q1 Q3Valve stem made by an automatic machine have lengths which are normally distributed with a mean of 50 mm and a standard deviation of 0.25 mm.What is the probability that the mean length of a sample of 4 stem will be more than 0.10 mm from the population mean length of 50 mm?
- The average time to run the 5K fun run is 25 minutes and the standard deviation is 2.3 minutes. 9 runners are randomly selected to run the 5K fun run. Round all answers to 4 decimal places where possible and assume a normal distribution. The top 15% of all 9 person team relay races will compete in the championship round. These are the 15% lowest times. What is the longest total time that a relay team can have and still make it to the championship round? minutesThe weight of a type of dog follows Normal distribution with mean of 10 pounds and standard deviation of 2 pounds What is the probability a dog of this type will weigh more than 14 pounds?Q3 i) The average number of acres of land cultivated with food grains is normally distributed with mean 4,300 acres per year, and standard deviation of 750 acres. What is the probability that between 2,500 and 4,200 acres will be cultivated in any given year? What number of cultivated acres corresponds to the 38th percentile?
- Systolic blood pressure readings for females are normally distributed with a mean of 125 and a standard deviation of 10.34. If 60 females are randomly selected then find the probability that their mean systolic blood pressure is between 122 and 126. Give your answer to four decimal places.Find probability cholesterol is between 300 & 400 Round to 3 decimal place
