23. The number of different groups of four letters that can be made from the letters of the word SEREKI is A. 15 В. 11 С. 19 D. 192

Q: 16 as is

A:

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A: as per bartleby guidelines i can do only first question

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A: Solution

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A: From the given data: People with the blue eyes = 12 People not wearing yellows = 22

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Q: #21

A: Given,

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A: It is an important part of statistics .It is widely used.

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A: We need to estimate the value of the following expression 5+15

Equations and Inequations

Equations and inequalities describe the relationship between two mathematical expressions.

Linear Functions

A linear function can just be a constant, or it can be the constant multiplied with the variable like x or y. If the variables are of the form, x2, x1/2 or y2 it is not linear. The exponent over the variables should always be 1.