Question

A certain type of storage battery lasts , on average, 4.0 years with a standard deviation of 0.5 year. Assume that battery life is normally distributed Find the probability that a given battery will last less then 3.4s What is the probability that exactly half of ten batteries will last less then 3.4 years? On average, how many of these ten batteries will last less than 3.4 years

Name: a certain type of storage battery lasts on average 40 years with a standard deviation of 05 year assume that battery life is normally distributed find the probability that a given battery will last le
Uploaded: 2022-04-12T12:36:35-08:00
Duration: 54 s
Channel: Qudsiya Anis
Description: a certain type of storage battery lasts on average 40 years with a standard deviation of 05 year assume that battery life is normally distributed find the probability that a given battery will last le

          A certain type of storage battery lasts , on average, 4.0 years
with a standard deviation of 0.5 year. Assume that battery life is
normally distributed
Find the probability that a given battery will last less then
3.4s
What is the probability that exactly half of ten batteries will
last less then 3.4 years? On average, how many of these ten
batteries will last less than 3.4 years

Added by Jeremy J.

Elementary Statistics a Step by Step Approach

Allan G. Bluman 9th Edition

Instant Answer

Solved by Expert Qudsiya Anis

04/12/2022

Step 1

4 years. The z-score is calculated as: z = (x - μ) / σ where x is the value we're interested in (3.4 years), μ is the mean (4.0 years), and σ is the standard deviation (0.5 years). z = (3.4 - 4.0) / 0.5 = -1.2 Now, we can use a z-table or calculator to find the Show more…

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A certain type of storage battery lasts , on average, 4.0 years with a standard deviation of 0.5 year. Assume that battery life is normally distributed Find the probability that a given battery will last less then 3.4s What is the probability that exactly half of ten batteries will last less then 3.4 years? On average, how many of these ten batteries will last less than 3.4 years