The probability that shelly will go to a movie (event a) on friday is 0.78, and the probability that danielle will go to a movie (event b) the same day is 0.63. the probability that shelly will go to a movie, given that danielle goes to a movie, is 0.87.
which statement is true?
a. events a and b are independent because p(a|b) ≠ p(a).
b. events a and b are independent because p(a|b) = p(b).
c. events a and b are dependent because p(a|b) = p(a) x p(b).
d. events a and b are dependent because p(a|b) ≠ p(a).
e. events a and b are dependent because p(a|b) = p(a).

Find the area of a trapezoid with bases 14 cm and 18 cm and height 10 cm. 160 cm2 140 cm2 180 cm2 126 cm2

In tossing one coin 10 times, what are your chances for tossing a head? a tail? 2. in tossing one coin 100 times, what are your chances for tossing a head? a tail? 3. in tossing one coin 200 times, what are your chances for tossing a head? a tail? deviation = ((absolute value of the difference between expected heads and observed heads) + (absolute value of the difference between expected tails and observed tails)) divided by total number of tosses. this value should always be positive. 4. what is the deviation for 10 tosses? 5. what is the deviation for the 100 tosses? 6. what is the deviation for 200 tosses? 7. how does increasing the total number of coin tosses from 10 to 100 affect the deviation? 8. how does increasing the total number of tosses from 100 to 200 affect the deviation? 9. what two important probability principles were established in this exercise? 10. the percent of occurrence is the obtained results divided by the total tosses and multiplied by 100%. toss the coins 100 times and record your results. calculate the percent occurrence for each combination. percent head-head occurrence: percent tail-tail occurrence: percent head-tail occurrence:

Which expression is equivalent to 3^3 + 2^2?