Answer:
Two signs.
Step-by-step explanation:
When adding positive numbers, count to the right. When adding negative numbers, count to the left. When subtracting positive numbers, count to the left.
we know that
total cards=10
even numbers=2,4,6,8,10 -----> 5 cards
the probability that getting an even number is
P=5/10
The probability that getting an odd number
n 1 -----> P=1/10
n3 ----> P=1/10
n5 ---> P=1/10
n7 ----> p=1/10
n 9 ---> P=1/10
The expected value is equal to
EV=(1)(1/10)+(3)(1/10)+(5)(1/10)+(7)(1/10)+(9)(1/10)-(4.20)(5/10)
EV=(25/10)-(21/10)
EV=4/10
EV=$0.40
<h2>The expected value is $0.40</h2>
Part B
Jane can expect to win money after playing the game many times
the answer is
<h2>Jane can expect to gain money</h2><h2>She can expect to win $0.40 per draw</h2>
A. given a profit, there is only one number of tickets that could have been sold.
<span>b. P^-1(900)=400 </span>
<span>c. it means that 4470 of revenue translates to 820 tickets. </span>
<span>P(820)=8.5(820)-2500=4470
D. i was not able to answer as i dont understand the question
</span>
7/30 x 100 = approx 23.3%
Product property is the answer
