Assume that the readings at freezing on a batch of thermometers are normally distributed with a mean of O°C and a standard deviation of 1.00°C. A single thermometer is randomly selected and tested. Find the probability of obtaining a reading less than -1.097°C. P(Z < – 1.097) = (Round your answer to 4 decimal places.)

Assume that the readings at freezing on a batch of thermometers are normally distributed with a mean of 0°C and a standard deviation of 1.00°C. A single thermometer is randomly selected and tested. Find the probability of obtaining a reading between -2.421°C and -2.271°C.P(−2.421<Z<−2.271)

The mean score of a competency test is 77, with a standard deviation of 5. Use the empirical rule to find the percentage of scores between 72 and 82. (Assume the data set has a bell-shaped distribution.) O A. 95% O B. 50% O C. 99.7% O D. 68% Next 5:27 PM 59°F Clear A 11/23/2021 9 Type here to search Insert 々 F1 PrtSc F2 F3 F4 F5 F6 F7 F8 F9 F10 F11 F12 %23 1 2 6. Q E T Y + I/ * 00 因 44 %#3

Enter a value for π. A die is rolled until it shows 6. Denote the number of times it was rolled by X. Compute: E(X): Standard deviation of X: (enter at least 3 decimal places).

Assume that the readings at freezing on a batch of thermometers are normally distributed with a mean of 0°C and a standard deviation of 1.00°C. A single thermometer is randomly selected and tested. Find the probability of obtaining a reading less than -2.451 C. P(Z < - 2.451) (Round your answer to 4 decimal places.) Submit Question 9. 3 y W e

Assume that z-scores are normally distributed with a mean of 0 and a standard deviation of 1.If P(−b<z<b)=0.6206, find b.b=  (Round to two decimal places.)   Assume that z-scores are normally distributed with a mean of 0 and a standard deviation of 1.If P(−1.3<z<b)=0.7411, find b.b= (Round to two decimal places.)

A population of score has μ  = 44. in this population, a score of X = 40 corresponds to z = -0.50. What is the population standard deviation?