a new type of fertilizer is used on a tomato farm.the weights of tomatoes grown are found to be normally distributed with a mean of 168g and a standard deviation of 3.6g.if a tomato is selected at random,
1.find the probability that it is less than 160.8g,
2.is it likely that it weighs more than 280g?briefly explain your answer.
數學題,pls help.
2012-09-15 2:46 am
回答 (1)
2012-09-15 4:43 am
✔ 最佳答案
Mean:168g3.6g =1/2 =0.5
168-160.8
2.the mean of tomatoes weight is 168,
If the weight do not change, it is impossible.
希望幫到你
收錄日期: 2021-04-13 18:58:12
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