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i need help please Determine the z-score for the given value. M = 255, a = 40, x = 155 Select one: O a. 2

i need help please
Determine the z-score for the given value. M = 255, a = 40, x = 155 Select one: O a. 2 O b. -2.5 O c. 2.5 O d. 1.5 O e. -1.5 Of. -2Assuming a normal distribution, determine the precent of data to the left of the z-score: z = 1.42 Select one: O a. 92.22% O b. 91.92% O c. 93.57% O d. 90.66%

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