Your answer should be $31.96 because when you multiply 7.99 by 4 that’s what your going to end up with.
P(at least 5 rolls until 1) = P(4 rolls are not 1) = 5/6 x 5/6 x 5/6 x 5/6 = 0.4823 (4sf)
Fewer than 7 rolls to get second 1 after first takes 3 rolls means second occurs on 4th, 5th or 6th roll
The probability of each of these is 1/6, 5/6 x 1/6 and 5/6 x 5/6 x 1/6 respectively.
P(second 1 on 4th, 5th or 6th roll) = 1/6 + 5/36 + 25/216 = 91/216 = 0.4213 (4sf)
Answer:
Slope is -5/4
Step-by-step explanation:
to find the slope of two points, you subtract the y values/x values. So 8-13/5-1 which ends up as -5/4 which is the answer.
add the 2 probabilities together:
0.297 + 0.423 = 0.72
Answer is C
Answer: Three less than a number
Step-by-step explanation: z-3 means the three is subtracted from the unknown number.
<em>An unknown quantity less than three. would be 3 - z or z < 3</em>
