Make them have common denominators: -2/8 - 3/8 - 6/8 - 7/8 =
Now just do subtraction with numerators: -5/8 - 6/8 -7/8 = -11/8 - 7/8 = -18/8 =
Simplify: -9/4 =
Make it a mixed fraction: -2 1/4 (D)
Answer:
Step-by-step explanation:
Line LP = Line ON
Line MP = Line MN
Line ML = Line MO
__ __
LP = ON
Answer:
Option B
Step-by-step explanation:
HHH → All heads
HHT → Two heads + one tail
HTH → Two heads + one tail
HTT → Two tails + one head
THH → One tail + two heads
THT → Two tails + one head
TTH → Two tails + one head
TTT → All tails
Therefore, At least two tails means → Sample space outcome with two tails Or all tails
Therefore, from the given options HTT is having two tails.
Option B is the correct option.
Answer:
1509
Step-by-step explanation:
We know that, formula for number of samples is,

When nothing is given, we take
and we know that
.
SE = 0.03 (the true proportion should remain withing 3%)
Putting the values we get,


Therefore, the sample required to estimate the true proportion to within 3 percentage points is 1509.