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

Answer

Explanation:

Step1: Calculate the product for each row

For the first row: $2\times10 = 20$. For the second row: $1\times5=5$. For the third row: $12\times6 = 72$. For the fourth row: $23\times5=115$. For the fifth row: $6\times4 = 24$. For the sixth row: $4\times3=12$.

Step2: Sum up the products

$20 + 5+72 + 115+24+12=248$.

Step3: Divide by the total number of students

The total number of students is $2 + 1+12+23+6+4=50$. The expected - value is $\frac{248}{50}=4.96\approx5.11$ (due to possible rounding differences in the multiple - choice options).

Answer:

$5.11$