(1 point) The shelf life of a batteries produced by one major company are normally distributed...
(1 point) The shelf life of a batteries produced by one major company are normally distributed with a mean of 4.1 years and a standard deviation of 0.2 years. The figure below shows the distribution of shelf lives of batteries produced by one major company Calculate the shaded area unde the curve. Express your answer in decimal form with three decimals of accuracy. Answer: 9938 3.966 Shelf Lives of Batteries Produced by One Hajor Company
(1 point) Length of skateboards in a skateshop are normally distributed with a mean of 31.9 in and a standard deviation of 0.4 in. The figure below shows the distribution of the length of skateboards in a skateshop. Calculate the shaded area under the curve. Express your answer in decimal form with three decimal place accuracy. Answer: 31.632 32.7 The Length of Skateboards in a Skateshop
(1 point) Scores on a standardized exam are normally distributed with a mean of 539 and a standard deviation of 99. The figure below shows the distribution of the scores on a standardized exam. Calculate the shaded area under the curve. Express your answer in decimal form with at least two decimal place accuracy Answer 472.67 137 The Scores on a Standardized Exan
Fluorescent lighbulbs have lifetimes that are normally distributed with a mean of 5.1 years and a standard deviation of 1 years. The figure below shows the distribution of lifetimes of fluorescent lightbulbs. Calculate the shaded area under the curve. Express your answer in decimal form with at least two decimal place accuracy. Answer: The numbers on the diagram are 4.43 and 7.1.
The shelf life of a particular dairy product is normally distributed with a mean of 12 days and a standard deviation of 3 days. About what percent of this product last between 10 days and 13 days? Do not use the empirical rule. Use the graphing calculator, not a table, to find the answer to one decimal place.
A manufacturer knows that their items have a normally distributed lifespan, with a mean of 3.9 years, and standard deviation of 1 years. If 10 items are picked at random, 4% of the time their mean life will be less than how many years? Give your answer to one decimal place.
A manufacturer knows that their items have a normally distributed lifespan, with a mean of 4.5 years, and standard deviation of 1 years. If 22 items are picked at random, 1% of the time their mean life will be less than how many years? Give your answer to one decimal place.
A company produces steel rods. The lengths of the steel rods are normally distributed with a mean of 93.4- cm and a standard deviation of 0.6-cm. Find the proportion of steel rods with lengths between 92 cm and 95.1 cm. Enter your answer as a number accurate to 4 decimal places. A company produces steel rods. The lengths of the steel rods are normally distributed with a mean of 155.6-cm and a standard deviation of 2-cm. A steel rod is...
Question 15 A manufacturer knows that their items have a normally distributed lifespan, with a mean of 4.7 years, and standard deviation of 0.6 years. If 5 items are picked at random, 1% of the time their mean life will be less than how many years? Give your answer to one decimal place. Question Help: Message instructor 2 Calculator Submit Question Question 16 34708 29
11. (18 points on the replacement times for washing machines woman 3 years and standard deviation of 1.1 year. Find the probability that to domly selected we are a replacement Round your answer to decimal places. Show how you get your answer. 12.12 points The way of here in one come and standard deviation of what is the protect at a randomly died wachers or 15 per week? Round your answer to decimal places Show how you get your answer....