Z-score calculations for statistics students

Assignment Help Basic Statistics

Reference no: EM13106437

1. The weight of cans of fruit is normally distributed with a mean of 1,000 grams and a standard deviation of 50 grams. What percent of the cans weigh 860 grams or less?

a) 0.0100

b) 0.8400

c) 0.0026

d) 0.0001

2). The mean amount spent by a family of four on food per month is $500 with a standard deviation of $75. Assuming that the food costs are normally distributed, what is the probability that a family spends less than $410 per month?

a) 0.2158

b) 0.8750

c) 0.0362

d) 0.1151

Reference no: EM13106437

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