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?\nstudent lunch survey\n| number of students | dollars spent on lunch each day |\n| ---- | ---- |\n| 2 | $10 |\n| 1 | $8 |\n| 12 | $6 |\n| 23 | $5 |\n| 8 | $4 |\n| 4 | $3 |\n$2.59\n$5.11\n$5.18\n$9.07

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?\nstudent lunch survey\n| number of students | dollars spent on lunch each day |\n| ---- | ---- |\n| 2 | $10 |\n| 1 | $8 |\n| 12 | $6 |\n| 23 | $5 |\n| 8 | $4 |\n| 4 | $3 |\n$2.59\n$5.11\n$5.18\n$9.07

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 $50$. So the expected - value is $\frac{259}{50}=5.18$.

Answer:

$5.18$