A normal distribution has a mean equal to 200. if 70% of the area under the curve lines from and to the left of 200.

find the:

a. area from and to the left of 200

b. II II II II II right of 200

c. standard deviation

d. area from 200 to 225

e. area from 200 to 220

Ex. In a given distribution, the ( X ) is 65 and the (S ) is "6. Find the X = Corresponding standard Score of a. 48 6 . 59 X o C. 77 d- 47\fCLEAN YOU Ex. In a given distribution, the ( X ) is 65 and the (S ) 13 6. Find the corresponding standard Score of a. 68 a. 2= 48-45 6. 59 X C . 77 7 - 05 d- 47- - 1 2 - Score. Ex. In a given distribution, the and the ( S ) is " 6. 2 = X- X- Corresponding stand. S a. 68 a. 2= 48. 6. 59 0-50 X C. 77 7 = 0 70.1915 or 1915%% d- 47 + - 0. 3413 or 34. 13% 2 = - 1 0- 0.5C x. In a given distribution, the (x ) is 45 and the (S ) is $6. Find the corresponding standard Score of a. 68 a. 7 = 48- 45 c. 2:77-5 6. 59 4 C . 77 2 = 05 2 = 2 d- 47 b. 2 =5 7 - Gd . 3413 or 6 34.13% 2 = - 1YOU G utim, the ( X ) is 65 13 6. find the Standard Score of: 2= 48-45 - c. 2:77- 65 2 = 05 2 = 2 is 7 - Gs 4.2= 47- 65 - 2 = - 3.\fCL If scores are normally distributed w/ a mean of 20 and a standard deviation of 5. what percent of scores is " a equal or greater than 30 ? b. equal or greater than 37? c. from 28 to 34 ?CL If scores are normally distributed w/ a mean of 20 and a standard deviation of 5. what percent of scores is ?" a. eval or greater than 30? 6 . equal or greater than 37 ? c . from 28 to ant ? 9 . 2 = X - x 2 , = 31 - 30 S 30 - 30 s 271 = 0.2 (0.0793 or 7-93% )\f\f\fCLEAN YOU G A. normally distributed data has a mean of 200 and a standard deviation of 20. 41.92%% ) G. what is the lowest value that belongs to the upper 10%% of the distribution? 6. what are the two extreme scones, outside of w/C only solo of the distinction are expected to fall? 3.35 %A. normally distributed 40%% or 0.4 of 200 and a star 0.08 0. 4000 a. what is the lowest val upper 10% of the . 2549 25% 0. 3997, a b. what are the two ex 2 = 1.28 w/c only 50%% of the 0. 2500 0 . 0 7 6.06- 4 0. 2486 0.0 3 2\fCLEAN YOU G lly distributed data has a mean on and a standard deviation of 20. Highat s the lowest value that belongs to the or 10% of the distribution? High / low are the two extreme scones, outside of only (5%%) of the dittimation are expected to fall? H = 25% 1 0. 250 0. 2549 = L = 2510 V 2 - 0.6CLEAN YOU G A. normally distributed data has a mean of 200 and a standard deviation of 20. Highat a. what is the lowest value that belongs to the upper 10%% of the distibution? 549 Hish / tor/ 6. what are the two extreme scores, outside of w/C only (50%%) of the clothimation are expected to fall? 2500 H = 25% 1 0 250 0. 2149 = 0.07 L = 2510 V 2 - 0.6 2486 ZsoneCLEAN YOU G distributed data has a mean and a standard deviation of 20 Highat the lowest value that belongs to the 10% of the distribution? 5/ High / low e the two extreme scones, outside of so) of the distinction are expected to fall? H = 25% 1 0. 250 19. 2549 = L = 2510 1 0. 2500 * 0.24 84 2 - 0.6 2=0.0BLot of value that belongs to the the distribution? High / low wo extreme scores, outside of of the distinction are expected to fall? H = 25% 1 0 250 NG. 25 17 L = 250 1 0. 2500 * 6. 2484 12= 0.08 2=0.0BBE RESPONSIBLE FOR YOUR ERSONAL BELONGINGS A. normally H / 0.2500 / - 0 . 2517 of 200 0. 6 + 0. 08 12 = 0.68 a. what is upper 6. what a w / C on\fZ Z X- x S 1. A normal distribution has a mean (x) equal to 200. 25 = X-X 2 if 70% of the area under the curve lies from and to the left of 200. Find the: 9. area from and to the left of 200. b. 11 11 11 11 11 right of 200. a standard deviation f. area from 200 to 2is e. area from 20 to 220. Z = X - x S 25 = x-xTE RESPONSIBLE FOR YOUR Y PERSONAL BELONGINGS 1 + Areas of curve 0.0 0.65 - 1 1. Find the area from 2=0 to 2= 1:25 * 2 = score 0.3944 or 39.44%% 1.2 0. 3944 O 2 50% 0.50% 50- 39.44 = 10.56 0.5080 -0.27 49 01056 2 SCORETE RESPONSIBLE FOR YOUR Y PERSONAL BELONGINGS 1 + Areas of curve 0.0 0.65 - 1 1. Find the area from 2=0 to 2= 1:25 * 2 = score 0.3944 or 39.44%% 1.2 0. 3944 O 2 50% 0.50% 50- 39.44 = 10.56 0.5080 -0.27 49 01056 2 SCORE