Tell whether the statement is true or false.Some real numbers are integers.
A. True
B. False
Answer: A
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The number of sales calls made by certain employees during a special time span are given. 141, 137, 136, 135, 134, 132, 131, 130, 130, 130, 126, 125, 125, 124, 124, 122, 122, 121, 121, 119.Find the quartiles for the set of sales calls.
A. 133, 128, 123 B. 141, 130, 119 C. 141, 128.25, 119 D. 133, 130, 123
Determine whether the points A, B, and C form a right triangle.A = (2, 3); B = (8, 5); C = (14, -2)
A. Yes B. No
Find the vertex, focus, and directrix of the parabola with the given equation.(x + 1)2 = 20(y + 3)
A. vertex: (-1, -3) focus: (-1, -8) directrix: x = 2 B. vertex: (-3, -1) focus: (-3, 4) directrix: y = -6 C. vertex: (1, 3) focus: (1, 8) directrix: y = -2 D. vertex: (-1, -3) focus: (-1, 2) directrix: y = -8
The normal distribution curve, which models the distributions of data in a wide range of applications, is given by the function src="https://sciemce.com/media/3/ppg__cognero__7.5_Improper_Integrals_and_Applications__media__b3853422-5667-43b5-91e2-4c87d265d675.PNG" class="wirisformula" align="middle" style="vertical-align: middle;" data-wiris-created="true" varid="variable_id_field" variablename="impvar_80b93a11724342e698936cda4" /> and 
, 
and ? and ? are constants called the standard deviation and the mean, respectively. With 
, approximate 
.
?
A. 3
B. -5
C. 5
D. -1
E. 1