Analysis of the number of tourists visiting Old Fort William reveals that the annual number of visitors over the past 40 years is normally distributed with a mean of 60,000 and a standard deviation of 10,000. Using this information, calculate the probability that in any given year, the number of visitors was less than 80,000.
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- Suppose that the monthly charges for cell phone plans in the United States are normally distributed with a mean of $93 and a standard deviation of $19. What is the probability that any one cell phone user has a monthly plan that exceeds $76? Round your answer to at least three decimal places.The average height of mall giraffes is 16.3 feet. If the heights are normally distributed with a standard deviation of 3.2 feet, find the probability that a male giraffe is between 15 and 20 feet tall.If x=26,412 tuition per a four year and n=7,498 is standard deviation. Assuming the distribution is normal. Find the probability that a random nonprofit four year college will cost less than 28,604 per year. And find the 70th percentile for this distribution
- If P(A)= 0.3 and P(B)=0.5, then what is P(A) and P(B) ?The household income in a particular town can be represented by a normal distribution with a mean of £50,000, and a standard deviation of £10,000. i. What is the probability that a particular household has an income level of more than £55,000? ii. What is the probability that a particular household has an income that is less than £35,000?Assume that an individual's golf scores are normally distributed with a mean of 90.4 and a standard deviation of 5.3. Calculate the probability that the golfer will shoot lower than a 76 during his next round. Select one: a. 0.0051 O b. 0.065 O c. 0.012 O d. 0.0033
- The annual income for a sample of 450 part-time students is normally distributed with a mean income of $31,000 and a standard deviation of $3,000. What is the probability their annual income is more than $35,000?The annual per capita consumption of ice cream (in pounds) in the United States can be approximated by a normal distribution with mean of 20.7 Ibs and a standard deviation of 4.2 Ibs. Find the probability that the population consumes at most 10 lbs yearly? Answer in a complete sentence in context.Assume that adults have IQ scores that are normally distributed with a mean of 97.9 and a standard deviation of 24.8. Find the probability that a randomly selected adult has an IQ greater than 135.8. The probability that a randomly selected adult from this group has an IQ greater than 135.8 is?
- According to a recent survey, the salaries of entry-level positions at a large company have a mean of $41,750 and a standard deviation of $7500. Assuming that the salaries of these entry-level positions are normally distributed, find the proportion of employees in entry-level positions at the company who earn at least $53,000. Round your answer to at least four decimal places.Scores of each of the Knitting Aptitude tests were normally distributed with a mean of 6 hours and a standard deviation of 1.67 hours. Carrie will be taking the test tomorrow. Assume the data is normally distributed. Determine the probability of someone finishing in less than 2.17 hours 0.9891 0.5000 1.0 0.0109The annual income for a sample of 450 part-time students is normally distributed with a mean income of $31,000 and a standard deviation of $3,000. What is the probability their annual income is $22,000-$28,000?