manufacturer knows that their items have a normally distributed lifespan, with a mean of 4 years, and standard deviation of 1 years. The 8% of items with the shortest lifespan will last less than how many years? Round your answer to one decimal

Q: Suppose the mean percentage in Algebra 2B is 70% and the standard deviation is 8%. What percentage…

A: GivenMean(μ)=70%standard deviation(σ)=8%

Q: You throw a ball as far as you can 5 times, recording the distance for each throw: 165 feet, 184…

A: since only 5 observation is given we will consider them as sample (n = 5)and population (N = 100)…

Q: Round each z-score to the nearest hundredth. A data set has a mean of x = 218 and a standard…

A: Given , x = 218    , σ = 40 We know , z-score = x-xσ

Q: The mean life of pairs of shoes is 40 months with a standard deviation of 8 months If the life of…

A: The random variable X is the life of shoes It is normally distributed. The mean life of the pair of…

Q: A researcher measures the amount of food consumed by each dog in her lab. She finds that the mean…

A: It is given that mean amount of food is 12 oz and number of dogs is 16. The sum of squared…

Q: In a population of ages where the mean age is 45 and the standard deviation is 5.25, what are the…

A: Given mean age = 45Standard deviation = 5.25The Z score with 0.0505 to its left is -1.64 and the Z…

Q: People with z-scores about 2.5 on an IQ test are sometimes classified as geniuses. If IQ scores have…

A: The z-score denotes how many standard deviations away from the mean a raw score is The z-score can…

Q: Find the indicated IQ score. The graph to the right depicts IQ scores of adults, and those scores…

A: The given data is as follows:Population mean, Population standard deviation,

Q: Suppose the mean percentage in Algebra 2B is 70% and the standard deviation is 8%. What percentage…

A:

Q: Adult men have an average height of 69.0 inches with a standard deviation of 2.8 inches. Find the…

A: The objective of this question is to find the height of a man given the z-score, the average height,…

Q: 95% of 80 night students scored between 70% and 80% on a quiz. If this data is normally distributed,…

A: Given: Total number of students n=80.             let X  denote the marks of students then,  X ~N(µ,…

Q: A particular fruit's weights are normally distributed, with a mean of 712 grams and a standard…

A: Given Information: A particular fruit's weights are normally distributed, with a mean of 712 grams…

Q: A manufacturer knows that their items have a normally distributed lifespan, with a mean of 7.2…

A:

Q: The life of light bulbs is distributed normally. The standard deviation of the lifetime is 15 hours…

A: The mean is 590 hours and the standard deviation is 15. The life of light bulbs(X) is distributed…

Q: A particular fruit's weights are normally distributed, with a mean of 696 grams and a standard…

A:

Q: The indicated IQ score, x, is (R

A: here mean = 100 standard deviation  = 15  X = IQ score

Q: A person completes a timed task and is told that their z-score for the task is 1.36. The mean for…

A: Given: Population mean (µ) = 10.75 Population standard deviation (σ) = 2.40 z-score = 1.36

Q: For a certain group of individuals, the average heart rate is 74 beats per minute. Assume the…

A:

Q: y=3.1  n= 1.6 standard deviation  Find probability that the child spends less than 3.4 hours a day…

A: Given that If  y=3.1  n= 1.6 standard deviation

Q: As reported in Runner's World Magazine, the times of finishers in the New York City 10-km run are…

A: Given information- Population mean, µ = 60 minutes Population standard deviation, σ = 7 minutes Let,…

Q: Suppose that replacement times for washing machines are normally distributed with a mean of 8.8…

A:

Q: The average chef at a restaurant earns $17 an hour with a deviation of $1.75. What are the chances…

A:

Q: Report anything you noticed about the way the graphs were shaped, how they were different as the…

A: Considering the Reese’s Pieces candies manufactured by Hershey are 25 candies: Physical Sample:…

Q: The life of lightbulbs is distributed normally. The standard deviation of the lifetime is 20 hours…

A: The following information has been provided: The population mean is μ=600. The population standard…

Q: onsider yourself as a Math tutor to Grade 11 students. Study carefully the examples of real-life…

A: Real-life problem: A company produces light bulbs that have a mean lifespan of 2000 hours and a…

Q: DECIMAL FORM: 15 17 18 19 20 21 22 23 24 P(X) 0.03 0.09 0.18 0.18 0.15 0.26 0.6 0.03 0.03

A: Formula used.  E(x)= ∑x×p(x) E(x2 )=∑x2 ×p(x) Var(x)=E(x2 ) - [E(x)]2

Q: One year consumers spent an average of ​$22 on a meal at a resturant. Assume that the amount spent…

A: Determine between the two values will the middle 95% of the amounts of cash spent falls. The between…

Q: If you buy one ticket everyday for 365 days, find the mean and standard deviation for the numbers of…

A:

Q: A manufacturer knows that their items have a normally distributed lifespan, with a mean of 2.7…

A: Given : mean = μ = 2.7Standard deviation = σ = 0.9

Q: A company produces steel rods. The lengths of the steel rods are normally distributed with a mean of…

A: Mean()=136standard deviation()=1.2

Q: Laura and learn that her GPA average in her school is a 3.6 with a standard deviation of 0.3. if her…

A: Given  average=μ=3.6, standard deviation=σ=0.3 , X=3