Question

First impressions As part of a survey, a random sample of 1008 Americans was asked, "What do you notice first when you meet someone?" The five possible options to select were as follows: 1. Smile 2. Eyes 3. Smell 4. Clothes 5. Hair The results of the survey are shown in the graphic below. What people notice first when they meet someone Hair Smile 47% Eyes 31% Clothes Smell 11% Source: XL for Philips Sonicare survey of American adults

Answer 1

Random sample of 1008 americans are considered.

Expected count for Smiles =1008*(1/5)=201.6

Expected count for Eyes=1008*(1/5)=201.6

Note there are 5 traits here, Smile, Eyes, Smell, Clothes, Hair. SO EXPECTED THAT EQUAL EMPHASIS TO BE GIVEN TO ALL THE TRAITS, HENCE 1/5 IS MULTIPLIED WITH TOTAL SAMPLE SIZE.

PLEASE TELL IF IT NEEDS ROUND TO ANY PLACES OR NOT. OTHERWISE THE ANS ARE 201.6 FOR BOTH.

IF THERE IS ANY UNDERSTANDING PROBLEM REGARDING THE SUM, PLEASE FEEL FREE TO ASK DOUBT IN THE COMMENT BOX. THANKS.