the marketing club at school is opening a student store. they randomly survey 50 students about how much…

the marketing club at school is opening a student store. they randomly survey 50 students about how much money they spend on lunch each day. what is the expected value for a student to spend on lunch each day? student lunch survey number of students dollars spent on lunch each day 2 $10 1 $8 12 $6 23 $5 8 $4 4 $3

the marketing club at school is opening a student store. they randomly survey 50 students about how much money they spend on lunch each day. what is the expected value for a student to spend on lunch each day? student lunch survey number of students dollars spent on lunch each day 2 $10 1 $8 12 $6 23 $5 8 $4 4 $3

Answer

Explanation:

Step1: Calculate the product for each row

For the first row: $2\times10 = 20$. For the second row: $1\times8=8$. For the third row: $12\times6 = 72$. For the fourth row: $23\times5=115$. For the fifth row: $8\times4 = 32$. For the sixth row: $4\times3=12$.

Step2: Sum up the products

$20 + 8+72 + 115+32+12=259$.

Step3: Divide by the total number of students

The total number of students is $2 + 1+12+23+8+4=50$. The expected - value is $\frac{259}{50}=5.18$.

Answer:

$5.18$