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{1,2,3,4,6,9}find maximal and minimal and least and greatest number
find the variance and standard deviation of the probability distribution of a random variable x which can take only the values 2,4,5 and 9, given that p(2)= 9/20, p(4)= 1/20, p(5) = 1/5, and p(3)= 3/10
A vessel is in the form of an inverted cone. Its height is 8 cm and the radius of its top, which is open, is 5 cm. It is filled with water up to the brim. When lead shots, each of which is a sphere of radius 0.5 cm are dropped into the vessel, one-fourth of the water flows out. Find the number of lead shots dropped in the vessel.
Graph using the scatter plot diagram and interpret the following data.
71-80. The owner of a chain of fruit shake stores would like to study the correlation between atmospheric temperature and sales during the summer season. Suppose a random sample of 12 days is selected with the results given as follows:
Day
Temperature(F0)
(x)
Total Sales (Units)
(y)
1
79
147
2
76
143
3
78
147
4
84
168
5
90
206
6
83
155
7
93
192
8
94
211
9
97
209
10
85
187
11
88
200
12
82
150
A budget head for SSS Sales Inc. would like to compare the daily travel expenses for the sales staff and the audit staff. He collected the following sample information.
Sales Staff
105
120
140
160
100
170
160
140
130
160
180
190
Audit Staff
130
50
90
80
70
125
180
80
110
At 0.05 significance level, can he conclude that the mean daily expenses of sales staff are greater than the audit staff?
. The average family size in the Philippines was reported as 4.25. A random of families in a particular street resulted in the following family sizes: 5, 6, 7, 4, 3, 2, and 9. At 𝛼=0.10, does the average family size more than the national average?
2(2x+3)
Monthly food expenditures for families in rodriguez rizal averaged php6,500 with
5j4/(2j4)4
Consider a population consisting of a 2,3,4,5,6.Suppose sample size of 2 are drawn from this population. Describe the sampling distribution of the sanple means.
#340153 on Dec 2023