For a standard normal distribution, find: P(-2.83 z 2.47) The mass of a species of mouse commonly found in houses is no
-
- Site Admin
- Posts: 899603
- Joined: Mon Aug 02, 2021 8:13 am
For a standard normal distribution, find: P(-2.83 z 2.47) The mass of a species of mouse commonly found in houses is no
The mass of a species of mouse commonly found in houses is normally distributed with a mean of 19 grams with a standard deviation of 0.1 grams. Round your answers to 3 decimals. a) 30% of all mice have a mass of less than b) 15% of all mice have a mass of more than grams. grams.
A manufacturer knows that their items have a normally distributed length, with a mean of 18.5 inches, and standard deviation of 2.2 inches. If one item is chosen at random, what is the probability that it is less than 19.1 inches long?
A manufacturer knows that their items have a normally distributed lifespan, with a mean of 13.8 years, and standard deviation of 0.9 years. If you randomly purchase one item, what is the probability it will last longer than 16 years? Puinatio
A particular fruit's weights are normally distributed, with a mean of 351 grams and a standard deviation of 10 grams. If you pick one fruit at random, what is the probability that it will weigh between 374 grams and 375 grams
A population of values has a normal distribution with = 37.6 and o random sample of size n = 141. What is the mean of the distribution of sample means? What is the standard deviation of the distribution of sample means? (Report answer accurate to 2 decimal places.) 0₂ = 86.4. You intend to draw a
A population has parameters = 55.3 and σ = = 76.6. You intend to draw a random sample of size n = 88 What is the mean of the distribution of sample means? H₂ = What is the standard deviation of the distribution of sample means? (Report answer accurate to 2 decimal places.) 0₂ ==>
A manufacturer knows that their items have a lengths that are skewed right, with a mean of 13.3 inches, and standard deviation of 1.9 inches. If 41 items are chosen at random, what is the probability that their mean length is greater than 13.6 inches? (Round answer to four decimal places)