![nic9837](/avatars/37698.jpg)
nic9837
25.01.2020 •
Mathematics
The average life of a brand of automobile tires is 30,000 miles, with a standard deviation of 2,000 miles. if a tire is selected and tested, find the probability that it will have a lifetime between 25,000 and 31,000 miles. assume the variable is normally distributed. give your answer rounded to four decimal places (to the nearest ten-thousandth).
Solved
Show answers
More tips
- S Science and Technology How to Choose a Picture Frame: Tips and Recommendations...
- F Family and Home Choosing the Right Car Seat for Your Child: Tips and Recommendations...
- F Food and Cooking How to Get Reconfirmation of Registration?...
- C Computers and Internet How to Get Rid of Spam in ICQ?...
- A Art and Culture Who Said The Less We Love a Woman, the More She Likes Us ?...
- F Family and Home How to Get Rid of Your Neighbors?...
- S Society and Politics How Could Nobody Know About the Dead Mountaineers?...
- H Health and Medicine How to Cure Adenoids?...
- H Health and Medicine Why Wearing a Back Brace Can Be Beneficial During Back Strain?...
- S Sport When and Where Will the 2014 World Cup be Held?...
Answers on questions: Mathematics
- M Mathematics Ik these are super easy im just lazy but ill give and 100 points lol...
- M Mathematics Shonda painted 3 walls in her home. She used 3/4 of her paint. She used the same amount of paint on each wall. How much of her paint was used on each wall? Shonda...
- M Mathematics Nadia is comparing costs for two brands of garden compost. For Brand A, the cost y for x bags is shown in the table. Number of Bags, x 3 5 Total Cost ($), y 8.01...
- M Mathematics What is 5×10 squared?...
- M Mathematics Compute the following products. (4x+5)(4x−5) (4x+5)2...
- M Mathematics Please help me!! Answer this below:...
- M Mathematics Find the slope of the line through the two points (6,-12) (15,-3)...
- M Mathematics A family purchasesd tickets to a museum and spent a tgoatl of 38.00. The family purchased 4 tickets . There was a 1.50 processing free for each ticket.. Write and...
- M Mathematics Use the sine ratio or the inverse sine ratio to solve for x. Round to the nearest tenth....
- M Mathematics What kind of graph is this ? A. Zero B. Undefined C. Positive D. Negative...
Ответ:
Find the z scores for 25000 and 28000.
z1=( x – average)/ standard deviation =( 25000-30000)/ 2000 = -2.5
z2=( x – average)/ standard deviation =( 31000-30000)/ 2000 = 0.5
Find the corresponding P(z).
P (z1) = 0.00621
P (z2) = 0.15866
Subtract the probabilities to find the probability for the range,
(25000<= x <=28000)
P(x) = 0.15866-0.00621 = 0.1524
Ответ:
Integer
Step-by-step explanation:
Since we cannot tell if these two integers are decimals, fractions, improper fractions, or whole numbers, there is ALWAYS one thing we know. They are integers.