Rating $1$ $2$ $3$ $4$ $5$
Frequency $1$ $3$ $5$ $5$ $6$
The given frequency table gives the $20$ customer ratings for a XARA product sold online. What is the mean rating for this product?

3.6

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3.8

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4

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5

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Solution

The correct option is A $3.6$
Rating (x) Frequency(f) fx
1 1 $1 \times 1 = 1$
2 3 $2 \times 3 = 6$
3 5 $3 \times 5 = 15$
4 5 $4 \times 5 = 20$
5 6 $5 \times 6 = 30$
$\sum f x = 1 + 6 + 15 + 20 + 30 = 72$

Mean $=$ $\frac{72}{20} = 3.6$

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6356432542

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Rating (x)	Frequency(f)	fx
1	1	$1 \times 1 = 1$
2	3	$2 \times 3 = 6$
3	5	$3 \times 5 = 15$
4	5	$4 \times 5 = 20$
5	6	$5 \times 6 = 30$

Rating1 2 3 4 5 Frequency1 3 5 5 6 The given frequency table gives the 20 customer ratings for a XARA product sold online. What is the mean rating for this product?

The correct option is A 3.6 Rating (x) Frequency(f) fx 11 1×1=1 23 2×3=6 35 3×5=15 45 4×5=20 5 6 5×6=30∑fx=1+6+15+20+30=72Mean = 7220=3.6

Rating $1$ $2$ $3$ $4$ $5$
Frequency $1$ $3$ $5$ $5$ $6$
The given frequency table gives the $20$ customer ratings for a XARA product sold online. What is the mean rating for this product?

The correct option is A $3.6$
Rating (x) Frequency(f) fx
1 1 $1 \times 1 = 1$
2 3 $2 \times 3 = 6$
3 5 $3 \times 5 = 15$
4 5 $4 \times 5 = 20$
5 6 $5 \times 6 = 30$
$\sum f x = 1 + 6 + 15 + 20 + 30 = 72$

Mean $=$ $\frac{72}{20} = 3.6$