Mathematics: Does artistic ability determine which type of operating system a person prefers? Suppose that a market research company randomly selected n=259 adults who used a desktop or laptop outside of the workplace (tablets and smartphones were excluded).

Does artistic ability determine which type of

brandonthomas11

31.01.2022

Your question lacks some parts attached below is the complete question

Answer : 2.66

Step-by-step explanation:

The expected number ( E ) can be calculated using the formula below

$E = \frac{row total * column total }{gross total}$

since we are computing the number of subjects that would prefer Linux operating system and are also rated as exceptional

The row total to be used = 53 ( row total of exceptional )

The column total to be used = 13 ( column total of Linux )

The gross total to be used = summation of row total of both exceptional and no-exceptional = 259

BACK TO THE EQUATION

E = $\frac{53*13}{259}$ = 689 / 259

E = 2.6602 ≈ 2.66

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chaycebell6662

17.02.2020

1906

Step-by-step explanation:

In 240 students its is estimated that 16 speaks 3 or more languages.

Find out how many groups of 240 students are there in 28590 students.

$\frac{28590}{240}= \frac{953}{8}$

There are $\frac{953}{8}$ groups of students.

The expected number would be multiplying the group by 16

$\frac{953}{8}\times16=1906$

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