4. Do smokers have higher blood pressure? A random sample of twenty-eight smokers was obtained and their systolic blood pressure was obtained. Another random sample of thirty non-smokers was obtained and their systolic blood pressure was obtained. Smokers Blood Pressure Nonsmokers Blood Pressure 127 134 143 106 116 130 141 135 138 118 121 126 129 137 130 123 118 117 136 135 129 117 118 125 144 138 131 122 112 115 128 136 140 117 111 127 131 133 140 118 128 116 137 133 133 124 119 116 139 131 139 126 116 114 我们已 136 125 109 113

Q: 4 3- 1 -6 -5 -4 -3 -2 2 3 4 6. 2 -3 4 2. 3.

A:

Q: 4. If we randomly pull a number from B, what is the probability that it is also an element of A? P…

A:

Q: 1o.e 4.60

A: trigonometry rule

Q: Find the circumference of each circle. Leave your answer in terms of T.

A: From the image of the circle, we see that the radius= 16 units

Q: 63.52x4.7

A: To find 63.52x4.7

Q: 20 45 y

A:

Q: 8. 2 k=1 3k

A:

Q: 5.8 3.8 4.8 6.8

A: Given triangle is : To find the value of x.

Q: 4. 15 33,

A:

Q: 4. 36

A: Given,          34=a36

Contingency Table

A contingency table can be defined as the visual representation of the relationship between two or more categorical variables that can be evaluated and registered. It is a categorical version of the scatterplot, which is used to investigate the linear relationship between two variables. A contingency table is indeed a type of frequency distribution table that displays two variables at the same time.

Binomial Distribution

Binomial is an algebraic expression of the sum or the difference of two terms. Before knowing about binomial distribution, we must know about the binomial theorem.