What is 2 1/4 as a improper fraction??
2 answers:
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Answer with explanation:
Given : The heights of a certain population of corn plants follow a normal distribution with mean and standard deviation
a) Using formula , the z-value corresponds to x= 135 will be
At x= 155,
The probability that plants are between 135 and 155 cm tall :-
Hence, 34.73% of the plants are between 135 and 155 cm tall.
b) Sample size : n= 16
Using formula , the z-value corresponds to x= 135 will be
At x= 155,
The probability that plants are between 135 and 155 cm tall :-
Hence,The percentage of the samples would the sample mean height be between 135 and 155 cm.= 93.12%
Answer:
a 0,-1 d -4,-3 hope this helps
