The scores on the exam public health professionals take to be certified follows a normal distribution with a mean score of 75 points and a standard deviation of 7 points. What is the probability someone scores 78.5 or less on the exam? Round your answer to 4 decimal places.

Q: A vending machine dispenses coffee into an eight-ounce cup. The amount of coffee dispensed into the…

A: Given standard deviation(σ)=0.03

Q: Most graduate business schools require applicants to take the GMAT. Scores on this test are…

A: Given that mean = 545 and standard deviation=100 We have to find the score for which 5% of the…

Q: The mean height of Grade III pupils is 138 cm with a standard deviation of 8 cm. If a sample of 30…

A: given data μ = 138σ = 8n = 30P(x¯ ≥140) = ?

Q: Use the body temperatures, in degrees Fahrenheit, listed in the accompanying table. The range of the…

A:

Q: n a set of score, the coefficient of variation (in percentage terms) = 50% and standard deviation =…

A: The coefficient of variation is the ratio of the standard deviation to the mean. It is a measure 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: Greg is in his first semester at a university and is taking a calculus course with a large…

A:

Q: A vending machine dispenses coffee into a twelve-ounce cup. The amount of coffee dispensed into the…

A: Vending machine dispenses coffee into a 12 ounce cupx=12standard deviation()=0.07

Q: he IQ of a person follows a normal distribution and has a mean of 100 and a standard deviation of…

A: Given that  The data is normally distributed with  Mean (μ) = 100 Standard deviation (σ) = 15   We…

Q: Molly earned a score of 920 on a national achievement test. The mean test score was 825 with a…

A: Given that, The proportion of students had a higher score than Molly is,

Q: A successful basketball player has a height of 6 feet 8 ​inches, or 203 cm. Based on statistics from…

A: Consider X is a random variable defined as the height of a successful basketball player.The provided…

Q: Help with calculations, round to 4 decimal places.

A: Given:μ = 201σ = 40.8n = 109a. P(x̄ > 208)  Find…

Q: We have provided simple data sets for you to practice the basics of finding a a. population mean. b.…

A: Solution: a. Let X be the random variable. The given data is 1, 2, 4, and 4

Q: n a survey of 18 year old males, the mean weight was 160.5 pounds with a standard deviation of 46.4…

A: GIVEN DATA, μ=160.5σ=46.4we have to find out the percentile for the given data

Q: Scores for a civil service exam are normally distributed, with a standard deviation of 8. To be…

A:

Q: The GMAC Insurance company reported that the mean score on the National Drivers Test was 67.5 with a…

A:

Q: Part 1 of 3 What is the probability that the sample mean cholesterol level is greater than 212? The…

A: The central limit theorem states that if you have a population with mean μ and standard deviation σ…

Q: Below represents the amounts that a random sample of employees reported that they spent on dinner…

A:

Q: We have provided simple data sets for you to practice the basics of finding a a. population mean. b.…

A: The given data is 2, 5, 0 and –1.

Q: distribution of the height of a tomato plant is normal with population mean of 50 inches. The 80th…

A: Provided data is, distribution of the height of a tomato plant is normal with population mean of 50…

Q: The average and standard deviation for ACT scores are 20 and 3 respectively. average and standard…

A:

Q: Ngan scored 1 standard deviation below the class average on a statistics exam. The class average was…

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Q: Raul received a score of 62 on a history test for which the class mean was 52 with standard…

A:

Q: In an Algebra class, the scores on a test are normally distributed. The middle 68% of the scores…

A: By empirical rule, 68% of data falls within one standard deviation. Thus, based on given info,…

Q: Justin got a score of 85 on an GE MMW examination for which the mean is 75. Justin realized that the…

A: Given:Here use the formula;here,  represents the value of Standard Daviation.

Q: Use the normal distribution of IQ scores, which has a mean of 75 and a standard deviation of 18 ,…

A: X~N(μ=75,σ=18)

Q: A vending machine dispenses coffee into a twelve-ounce cup. The amount of coffee dispensed into the…

A: Normal Distribution:Normal Distribution:The normal distribution is a continuous probability…

Q: A medical lab tested a sample of 8 vials of blood for acidity on the pH scale.  Use this data to…

A:

Q: We have provided simple data sets for you to practice the basics of finding measures of variation.…

A:

Q: that the distribution is normal. What is the chance that three indoor cats die between 15 and 18…

A: here mean= 14 year standard deviation  = 2.5 year

Q: On a nationwide math test, the mean was 72 and the standard deviation was 7. If Roberto scored 90,…

A: Given that, Mean = 72 Standard deviation = 7

Q: We have provided simple data sets for you to practice the basics of finding measures of variation.…

A: a) Range: Range is the difference between maximum and minimum value in a data set. In the given data…

Q: uppose you go to the grocery store and spend $92.54 for the purchase of 12 items . What is the mean…

A: Given that  Amount spent  = $92.54 Number of items bought = 12     We know that  Mean amount =…

Q: Exam scores have a normal distribution, with Mean of 70 and Standard deviation of 10. Bob’s score…

A: Exam scores have a normal distribution, with Mean of 70 and Standard deviation of 10. Bob’s score…

Q: The Coffee shop's mean sales are $2000 a day, with a standard deviation of $1000. what're the…

A: GivenMean(μ)=2000standard deviation(σ)=1000