Yizhang and Cheryl were waiting for Prof. Stoyanov to come for a meeting. Yizhang proposed a bet. He said that he would toss a fair coin 100 times, and if it landed tails more than 60 times, he would give Cheryl $5, otherwise Cheryl would give him $5...but Cheryl didnt want to do this. She was not sure that the coin was fair, and proposed the following test - Yizhang would toss the coin 30 times, and she would see how many times the coin landed tails, and then decide. Required:
a. How many times would you expect the coin to land tails in 30 tosses?
b. If the coin lands tails 10 times, should Cheryl play?

answer: f = 32.2m

step-by-step explanation: that is the answer

exactly you go it

step-by-step explanation:

b

step-by-step explanation:

answer:

given the linear inequality :

add 2y to both sides we get;

simplify:

add 12 to both sides of an equation;

simplify:

divide both sides by 2 we get;

or

the related equation for the inequality equation [1] is;

y-intercepts defined as the graph crosses the y-axis.

substitute x =0 in [2] to solve for y;

y = 6

x-intercepts defined as the graph crosses the x-axis.

substitute value y = 0 to solve for x;

subtract 6 from both sides we get

multiply both sides by 2 we get;

or

x = -12

now, plot these point (0, 6) and (-12, 0) on graph as shown below and shade the graph below the solid line.