What is 2.068 rounded to the nearest 0.1
2 answers:
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114
1) Gathering the data
The mean is calculated by adding all the numbers and divided by the number of observations in this case 5.
So, Laura needs to score 114 to get at least 94 as an average.
≥
Answer:
The expected value of a ticket is of -$5.
Step-by-step explanation:
The expected value of the ticked is the probability of earning each prize multiplied by the prize, and subtracted by the value of the ticket.
Value of the ticket:
$10.
100 tickets are sold. They will award one first prize of $300, one second prize of $150, and one third prize of $50.
Thus, 1/100 probability of earning $300, 1/100 probability of 150 and 1/100 probability of 50. So
The expected value of a ticket is of -$5.