Find the probability that a randomly selected adult has an IQ greater than 136.4

Q: Assume that the scores of a college entry exam are normally distributed with a mean of 400 and a…

A: Given,mean(μ)=400standard deviation(σ)=60

Q: On a standardized exam, the scores are normally distributed with a mean of 39 and a standard…

A:

Q: The average age of vehicles registered in the United States is 96 months. Assume the population is…

A:

Q: All incoming freshmen at a major university are given a mathematics diagnostic exam. The scores  are…

A: Let us denote:X=scores Given that X follows a normal distribution with mean=120 and standard…

Q: The amount of snowfall falling in a certain mountain range is normally distributed with a mean of…

A:

Q: The flying time of a drone airplane has a normal distribution with a mean of 4.76 hours and a…

A: Given ,         Meanu=4.76         Standard deviation σ=0.04

Q: Tiger Woods hits an average driver 287.2 yards with a standard deviation of 24.6 yards. What is the…

A: The probability value is calculate by means of standard normal variate with the random variable,…

Q: The lifespans of certain 350 sample cricket insects are normally distributed. it is found that 15%…

A: Let, X be the life span. μ =mean σ= sd

Q: Assume that adults have IQ scores that are normally distributed with a mean 103.4 of and a standard…

A: IQ scores are normally distributed with a mean 103.4 and a standard deviation of 16.8.

Q: normal distribution has a mean of 136 and a standard deviation of 4. Find the z-score for a data…

A: given data, normal distribution μ=136σ=4z score for a data value of 132=?

Q: d) 85% of all students finish the activity in less than secon Submit Question

A: X~N( μ = 38.6 , ? = 6.3 ) μ = 38.6 , ? = 6.3 Z-score =( x - μ )/?

Q: A pediatrician claimed that the average time for a drug to take effect is. 15 minutes with a…

A:

Q: A dataset has a mean of 48.1 and a standard deviation of 6.3. What is the z-score of the value 18.5,…

A: Solution  Given That, A dataset has a mean of 48.1 and a standard deviation of 6.3. What is the…

Q: The annual salaries of all employees at a financial company are normally distributed with a mean 4 =…

A:

Q: Assume that body temperatures of healthy adults are normally distributed with a mean of 98.2 and a…

A: From the given information X follows normal distribution with mean µ = 98.2 standard deviation σ =…

Q: The duration of an NBA basketball game during the 2019-20 season is normally distributed with the…

A:

Q: IQ scores are normally distributed with a mean of 100 and a standard deviation of 15. What is the…

A:

Q: The average number of pounds of red meat a person consumes each year is 196 with a standard…

A: We are given,μ = 196σ = 22n = 60

Q: The average time a person spends shopping in a grocery store is 43 minutes.  If the time is normally…

A: Given:  The average time a person spends shopping in a grocery store is 43 minutes.  The time is…

Q: The average age of UST employees is 34 years old. Assume the data is normally distributed. If the…

A: The average age of UST employees is 34 years old i.e. μ=34 The standard deviation is three years…

Q: Assume that people playing World of Warcraft in a week has a normal distribution with a mean of 54…

A: This question requires us to use the normal distribution to calculate the probability of a randomly…

Q: The amount of snowfall falling in a certain mountain range is normally distributed with 80 inches…

A: Let x¯ denotes the mean annual snow falling during 25 randomly picked years. The mean is 80, and…

Q: The mean age that cats get adopted at a shelter is 21.4 months with a standard deviation of 3.6…

A: Solution: Let X be the age. From the given information, X follows normal distribution with mean…

Q: A tire company makes tires that have a normal distribution with a mean of 65,000 miles with a…

A: Given that Mean= 65000 and standard deviation= 3000

Q: If a golfer hit drives a golf ball with a mean of 180 yards and a standard deviation of 20 yards,…

A: We have given that  A golfer hit drives a golf ball with a mean of 180 yards and a standard…

Q: Body temperatures of adults are normally distributed with a mean of 98.60 Fahrenheit and a standard…

A: The Z-value of a random variable X is defined as follows: Here, the mean and standard deviation of…

Q: Assume the random variable X is normally distributed with a mean of 50 and a standard deviation of…

A:

Q: he number of customers at a coffee shop per day follows a normal distribution with a mean of 3,500…

A: given data, normal distributionμ=3500σ=250probability that the coffee shop will serve more than…

Q: tal of 82 Grade 11 students of ABC senior high school took the 60 item test in General mathematics.…

A: To find the normal distribution with the mean 42 and standard deviation 6

Q: Assume that adults have IQ scores that are normally distributed with a mean of 100.3 and a standard…

A: Assume that adults have IQ scores that are normally distributed with a mean of 100.3 and a standard…

Q: The amounts of time students study for an exam follows a normal model with a mean of 6 hours and a…

A: Obtain the standard z-score for the random variable X equals 3.5. The standard z-score for the…

Q: A researcher polled a sample of  1087  adults in the year  2010 , asking them how many hours per…

A: Given that  Sample sizes n1=1087      , n2=1046      Sample means X̄1=10.49      , X̄2=9.45    ?1…

Q: months. What is the standardized value for a family vehicle that is 3 years and 3  months old?

A: Given Data : Population Mean,μ =2years = 2*12 =  24

Q: the mean of a random sample of size n= 25 is used to estimate the mean of an entire population that…

A:

Q: A study found that the mean systolic blood pressure was 106 mm Hg. Assume that the systolic blood…

A: It is given that mean and standard deviation are 106 and 8, respectively.

Q: Assume that people playing World of Warcraft in a week has a normal distribution with a mean of 54…

A: The probability that a randomly selected person played more than 89 hours is obtained below, From…

Q: Suppose that a recent article stated the mean time spent in jail by a first-time convicted burglar…

A: Given :μ=2.7x¯=3.01s=1.78n=27α=0.1The hypotheses for the relevant test is :H0:μ=2.7  H0:μ>2.7…