You will need the same dataset used for problem 3 in homework 1 (the dataset obtained from the yahoo website with the company yo
1 answer:
Answer:
a) The probability of sampling at random a fish that is smaller in size than the value you would obtain by subtracting half the standard deviation from the average is 0.3085.
b) The probability of sampling at random a fish that is greater in size than the value you would obtain by adding half the standard deviation from the average is 0.3085.
c) The probability of sampling at random a fish that has a size between the two values is 0.383.
d) The 25th and 75 percentiles of fish size for the population using the normal distribution table is 5.69 and 5.87 respectively.
e) The probability that the average calculated will be less than the value is 0.3707.
Step-by-step explanation:
For the given data set mean
Standard deviation
Variance
Here we get is
a)
b)
c)
d)
25th percentile:-
75the percentile:-
e)
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What you can see is that this graph is symmetrical around the x axis.
When you talk about symmetry, you can think of it as taking a mirror and putting it where you think there is symmetry. If you can't tell the difference between the image and the real thing, then you have symmetry.
In this case, the mirror will show symmetry along the x axis and no where else.
Here is the graph.
What you can see is that this graph is symmetrical around the x axis.
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In this case, the mirror will show symmetry along the x axis and no where else.