You have to buy a pair of running shoes. You have 3 brands: Ruma, Peebok and Abibas. You go online and search for reviews of different brands. There you saw that on the basis of stars, brands are rated. More stars imply better rating. Find the average star rating for Ruma. (approx)

No worries! We‘ve got your back. Try BYJU‘S free classes today!

Right on! Give the BNAT exam to get a 100% scholarship for BYJUS courses

2.5

No worries! We‘ve got your back. Try BYJU‘S free classes today!

Open in App

Solution

The correct option is C
4

Average star rating = $\frac{T o t a l n u m b e r o f s t a r s g i v e n b y p e o p l e}{T o t a l n u m b e r o f p e o p l e w h o g a v e t h e r a t i n g}$ .

For Ruma,average star rating= $\frac{(180 \times 5) + (104 \times 4) + (95 \times 3) + (12 \times 2) + (11 \times 1)}{180 + 104 + 95 + 12 + 11}$

average star rating = $\frac{900 + 416 + 285 + 24 + 11}{180 + 104 + 95 + 12 + 11}$

average star rating = 4.07

average star rating = 4 (approximate)

Suggest Corrections

Similar questions

You have to buy a pair of running shoes. You have 3 brands: Ruma, Peebok and Abibas. You go online and search for reviews of different brands. There you saw that on the basis of stars, brands are rated. More stars imply better rating. Which brand has the highest average rating?

Q. How many shoes are there of Reebok brand?

Q. A customer reviews a shopping mall between 1 to 5 stars. Which of the following represents sample points and sample space respectively for the customer's star rating ?

Q. In malls, you get both branded and non-branded goods.

Q. What do you understand by the word 'brand'? List two reasons why building brands is central to advertising?

Join BYJU'S Learning Program

You have to buy a pair of running shoes. You have 3 brands: Ruma, Peebok and Abibas. You go online and search for reviews of different brands. There you saw that on the basis of stars, brands are rated. More stars imply better rating. Find the average star rating for Ruma. (approx) ​

You have to buy a pair of running shoes. You have 3 brands: Ruma, Peebok and Abibas. You go online and search for reviews of different brands. There you saw that on the basis of stars, brands are rated. More stars imply better rating. Find the average star rating for Ruma. (approx)