Normal distribution. Graphs, standard deviation, percentages, mean, using variable x. 5 questions in pictures. Thank you!! A set of exam scores are approximately normally distributed with mean = 66 and standard deviation = 5. Use the Empirical Rule to determine the area of the shaded regions shown below. 51 56 61 71 76 81 66 Exam Scores 1 . % 51 56 61 71 76 […]

normal distribution, mean range percentage average and standard deviation. The questions are in the files each picture is a question. Thank you!!! The annual rainfall in a certain region is approximately normally distributed with mean 42.4 inches and standard deviation 5.3 inches. Round answers to the nearest tenth of a percent. a) What percentage of years will have an annual rainfall of less than 44 […]

Standard deviation, average, charts, graphs, mean median mode range. Percentages and all questions are in pictures! Thank you! In a normal distribution, a data value located 0.8 standard deviations below the mean has Standard Score: z= In a normal distribution, a data value located 2.1 standard deviations above the mean has Standard Score: z= In a normal distribution, the mean has Standard Score: z= The […]

The average,mean,range,x=, standard deviation, ect. All in pics below 5 problems. Thank you!! The testing times for a group of college students were normally distributed with a mean of u = 30 minutes and a standard deviation of a = 2.5 minutes. The bell curve below represents the distribution for testing times. The scale on the horizontal axis is equal to the standard deviation. Fill […]

percentages, functions and exponential and linear. All in pictures below. four questions. Thank you!! Writing Linear and Exponential Equations When a new charter school opened in 1990, there were 840 students enrolled. Using function notation, write a formula representing the number, N, of students attending this charter school t years after 1990, assuming that the student population: N(t) a) Increases by 73 students per year […]

4 questions in files. percentages and rounding using exponential functions and equations, using the power of x. Bismouth-210 Bismuth-210 is an isotope that radioactively decays by about 13% each day, meaning 13% of the remaining Bismuth-210 transforms into another atom (polonium-210 in this case) each day. If you begin with 178 mg of Bismuth-210, how much remains after 8 days? After 8 days, mg of […]

info in screenshots it involves geometric series. Define geometric series and find their sums 11. Short Answer (3 points) Note: Remember to show all of the steps that you use to solve the problem. You can use the comments field to explain your work. Your teacher will review each step of your response to ensure you receive proper credit. n-1 Consider the infinite geometric series […]

info in screenshots it involves geometric series. I need it in PDF form! Define geometric series and find their sums 11. Short Answer (3 points) Note: Remember to show all of the steps that you use to solve the problem. You can use the comments field to explain your work. Your teacher will review each step of your response to ensure you receive proper credit. […]

Using percentages, multiplication, rounding, tmv finance calculator. 5 questions below. Thank you!! annuities and loans You want to buy a $197,000 home. You plan to pay 15% as a down payment, and take out a 30 year loan for the rest. a) How much is the loan amount going to be? S b) What will your monthly payments be if the interest rate is 5%? […]

Using math to figure out loans, payments and finance questions with percentages,tmv calculator ect. There are 5 questions all in pictures below. Thank you! Suppose you invest $150 a month for 6 years into an account earning 9% compounded monthly. After 6 years, you leave the money, without making additional deposits, in the account for another 28 years. How much will you have in the […]