8) the monthly worldwide average number of airplane crashes of commercial airlines is 3.5. what is the probability that there will be (a) at least 2 such accidents in the next month; (b) at most 1 accident in the next month? explain your reasoning!

(a) 0.8641

(b) 0.1359

Step-by-step explanation:

Given : The monthly worldwide average number of airplane crashes of commercial airlines

We use the Poisson  distribution for the given situation.

The Poisson distribution formula for probability is given by :-

a) The probability that there will be at least 2 such accidents in the next month is given by :-

b) The probability that there will be at most 1 accident in the next month is given by :-

answear:

a

step-by-step explanation: a

see below

step-by-step explanation:

7.   there are 10 data points in the set.   the middle point is between 5 and 6.   the middle point in the top half is 8   and the middle point in the bottom half is 3. to find the iqr , take point 8 and subtract point 3

mid term   point 8 = 100   point 3 = 88

iqr = 100-88 = 12

final   point 8 = 93   point 3 = 78

iqr = 93 - 78 = 15

the final has the greatest iqr

6.   b - there is a high data value that causes the data set to be asymmetrical for the males: the data for males are high and asymmetrical .   there is an outlier for the males that skews the data

5.   the   iqr is a better measure of spread for the movies and basketball games.   since the basketball game has an outlier, we do not want to use standard deviation for measurement.  

3.   the exam median is much higher than the class median.   the median line is farther to the right on the exams

2.   there is no way to tell what the means are from the box and whisker plots.