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Assume that a set of test scores is normally distributed with a mean of 110 and...

Assume that a set of test scores is normally distributed with a mean of 110 and a standard deviation of 5. Use the 68-95-99-7 rule to find the following quantities.
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Ans:- 6-5 36 -26 6 +5 +26 +35 since it out 시 a nomal distibution it is symmetric 1lO is in the middle of the oxis and mean mode 105 is first standord deviation to left and 115 dev. to xight a] 一一percentage of Scores. Iess than-110-15.50%- Since P(x to)o.SXNCU,6 b]--Relative frequency of-scores 1 ess -than Ils ie 84 than 120 15 /o oF scon )percentage p(x(120) o.9773 0.5土 o.St0.4773 0.9773 ie 97.73 9 d 1.-PL xく105) . c hich is vequived Probability ニ 0-5-0-34 드016elative frequency of scotes less than loo PLX-2.loo ) 드 o. 0227 Standardization 6 6 0,0227 1 Percentage oF Scores greater than 115 = o.16

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