6. The gross weekly sales at a certain super market are a Gaussian random with mean...
6. The gross weekly sales at a certain super market are a Gaussian random with mean $2200 and standard deviation $230. Assume that the sales from week to week are independent. (a) Find the probability that the gross sales over the next two weeks exceed $5000. (b) Find the probability that the gross weekly sales exceed $2000 in at least 2 of the next 3 weeks. 7. Let X1, X3, X, and X4 be pairwise uncorrelated random variables each with...
7. The weekly amount spent for maintenance and repairs in a certain company approximates a normal distribution with a mean of Php19,739 and a standard deviation of Php916. If Php20,004.64 is budgeted to cover repairs for next week, what is the probability that the actual costs will exceed the budgeted amount?
The daily sales of a certain variety store are approximately normally distributed with a mean of $10000 and a standard deviation of $2000. What is the probability that a random sample of 100 days will yield a mean greater than $9800?
1) A Gaussian random variable has a mean value of 3 and a standard deviation of 2. Find the probability that the value of the random variable exceeds 9. Repeat for the probability that it is less than -5. ANSWER WITH COMPLETE STEPS THANKS
3. The amount of money spent weekly on cleaning, maintenance and repairs at a large restaurant was observed over a long period of time to be approximately normally distributed with a mean of $625 and a standard deviation of $39. The amount of money spent weekly on cleaning, maintenance and repairs at a large restaurant was observed over a long period of time to be approximately normally distributed with a mean of $625 and a standard deviation of $39. If...
The number of automobiles sold weekly at a certain car dealership os a random variable with expected value 16. Give an upper bound to the probability that next week's sales are at least 19
The time it takes Alice to commute to UCSD is a Gaussian random variable X with a mean of 30 minutes and a standard deviation of 3 minutes. a. What is the probability that Alice’s commute to UCSD takes at least 36 minutes? P X > 36 = b. With probability 0.9, Alice’s commute to campus takes more than 30− ∆ minutes but less than 30 + ∆ minutes. What is the value of ∆? ∆ = Note: In this...
According to the data released by the Chamber of Commerce of a certain city, the weekly wages (in dollars) of female factory workers are normally distributed with a mean of 625 and a standard deviation of 50. Find the probability that a female factory worker selected at random from the city makes a weekly wage of $620 to $695. (Round your answer to four decimal places.)
The amount of money spent weekly on cleaning, maintenance, and repairs at a large restaurant was observed over a long period of time to be approximately normally distributed, with mean μ = $617 and standard deviation σ = $42. (a) If $646 is budgeted for next week, what is the probability that the actual costs will exceed the budgeted amount? (Round your answer to four decimal places.) Incorrect: Your answer is incorrect. (b) How much should be budgeted for weekly...
At a certain coffee shop, all the customers buy a cup of coffee and some also buy a doughnut. The shop owner believes that the number of cups he sells each day is normally distributed with a mean of 330 cups and a standard deviation of 21 cups. He also believes that the number of doughnuts he sells each day is independent of the coffee sales and is normally distributed with a mean of 130 doughnuts and a standard deviation...