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2 years ago

Order of operations- what does each letter represent? P, D, M, A, S

Mathematics

2 answers:

Andrews [41]2 years ago

6 0

P E M D A S \

Parentheses

Exponents

Multiplication

Division

Add

Subtract

Follow each step in order to solve an equation.

allsm [11]2 years ago

5 0

P, D, M, A, S.

P: Parenthesis

D: Divide

M: Multiply

A: Add

S: Subtract

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Double the quotient of 3 and 6

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Answer:

Step-by-step explanation:

Given :

Male Female Total

Registered 60

Non registered 40

Total 20 80

Solution :

N= 100

Formula of expected frequency = $E_{ij}=\frac{T_i \times T_j}{N}$

$E_{ij}$ = expected frequency for the ith row/jth columm.

$T_i$ = total in the ith row

$T_j$ = total in the jth column

N = table grand total.

So, using formula $E_{11}=\frac{T_1 \times T_1}{100}$

$E_{11}=\frac{60 \times 20}{100}$

$E_{11}=12$

$E_{12}=\frac{T_1 \times T_2}{100}$

$E_{12}=\frac{60 \times 80}{100}$

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$E_{21}=\frac{T_2 \times T_1}{100}$

$E_{21}=\frac{40 \times 20}{100}$

$E_{21}=8$

$E_{22}=\frac{T_2 \times T_2}{100}$

$E_{22]=\frac{80 \times 40}{100}$

$E_{22}=32$

Expected frequency table

Male Female Total

Registered 12 48 60

Non registered 8 32 40

Total 20 80

So, the expected frequency for males who are registered voters are $E_{11}=12$

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Mean = 179.4 / 6 = 29.9

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Answer:

Step-by-step explanation:

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