What is the product of -9p and (-4)
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The given problem describes a binomial distribution with p = 60% = 0.6. Given that there are 400 trials, i.e. n = 400.
a.) The mean is given by:
The standard deviation is given by:
b.) The mean means that in an experiment of 400 adult smokers, we expect on the average to get about 240 smokers who started smoking before turning 18 years.
c.) It would be unusual to observe <span>340 smokers who started smoking before turning 18 years old in a random sample of 400 adult smokers because 340 is far greater than the mean of the distribution.
340 is greater than 3 standard deviations from the mean of the distribution.</span>
a.) The mean is given by:
The standard deviation is given by:
b.) The mean means that in an experiment of 400 adult smokers, we expect on the average to get about 240 smokers who started smoking before turning 18 years.
c.) It would be unusual to observe <span>340 smokers who started smoking before turning 18 years old in a random sample of 400 adult smokers because 340 is far greater than the mean of the distribution.
340 is greater than 3 standard deviations from the mean of the distribution.</span>
Here we get the statement:
"sec^-1(0.5) is undefined"
And we want to see if this is true or false, so let's use the properties that we know to find that this is false.
Remember that the sec function is defined as:
Then we will have:
Then is really trivial to see that:
Then we can conclude that the function is not undefined at 0.5, so the statement is false.
Below you can see the graph of the given function, and you will see that it is never undefined.
If you want to learn more, you can read:
Answer: Park P
Step-by-step explanation:
Since, According to the question,
Number of yellow bird in park P = 33
Total number of the bird in park P = 53
Thus, the percentage of yellow bird in park P = = 62.264150943% ≈ 62 %
Number of yellow bird in park Q = 20
Total number of the bird in park Q = 48
Thus, the percentage of yellow bird in park P = =41.666666666% ≈ 42%
Number of yellow bird in park R = 54
Total number of the bird in park R = 90
Thus, the percentage of yellow bird in park R = = 60 %
Number of yellow bird in park S = 44
Total number of the bird in park S = 83
Thus, the percentage of yellow bird in park P = =53.012048192 % ≈ 53 %
Since, 62% > 60% > 53% > 42%
Therefore, highest percentage of the yellow bird is 62 %
Which is present in park P.