Math 120.002: Intro to Prob & Dec Making (Spring 2018) patrick ikejiofor & 3/26/

Question

Math 120.002: Intro to Prob & Dec Making (Spring 2018) patrick ikejiofor & 3/26/18 1:30 AM Homework: Section 3.2 Homework Score: 0 of 1 pt 3.2.28 Sav 3 of 12 (2 complete) Hw Score: 16.67%, 2 of 12 EQuestion Help e mean rate of violent orime (per 100,000 people) for 10 regions in the northeast of a certain country was 308. The standard deviation was 102. Assume that the distribution of violent crime rates is unimodal and symmetric. Complete parts (a) through (d) below a. Using the Empirical Rule, between what two values would you expect to find about 95% of the rates? Approximately 95% of the observations fall v ithin the interval (73 741 ) Type whole numbers.)

Explanation / Answer

mean = 308 , std.dev. = 102

By empirical rule,
mean +/- 2 std.dev.
308 +/- 2 *102
(104 , 512)

Approx. 95% of the observations fall within the interval(104 , 512)

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