math
posted by John .
The probability of an event is 20%. how many times should you expect the event to occur in the given number of trials?
1.15 trials
2. 40 trials
3. 75 trials
4. 120 trials

math 
PsyDAG
Multiply each by .2.
Respond to this Question
Similar Questions

math
for n repeated independent trials, with constant probability of success p for all trials, find the probability of exactly x succes n=5,p=1/3, x=4 
math
for n repeated independent trials, with constant probability of success p for all trials, find the probability of exactly x succes n=5,p=1/3, x=4 
math
for n repeated independent trials, with constant probability of success p for all trials, find the probability of exactly x succes n=5,p=1/3, x=4 
math
for n repeated independent trials, with constant probability of success p for all trials, find the probability of exactly x succes n=20,p=1/8, x=2 I know the answer but I do not know how to get to that. Answer is 0.268 should I reduce … 
Determining Probabilities
When would you expect the experimental probability of an event to be closest to its theoretical probability? 
hunting training
2. Which of the following statements is true? 
stats and prob
Consider a sequence of independent Bernoulli trials with p= 0.2 a) what is the expected number of trials to obtain the first success? 
Algebra
Brandon flips two fair coins multiple times and records the frequency of the results in the following table. 50 trials125trials150trials HH 10 33 37 TH 9 31 38 HT 13 28 38 TT 18 33 37 DETERMINE THE EXPERIMENTAL PROBABILITY AND THEORETICAL … 
Algebra
PLEASE HELP ME :( Brandon flips two fair coins multiple times and records the frequency of the results in the following table. 50 trials125trials150trials HH 10 33 37 TH 9 31 38 HT 13 28 38 TT 18 33 37 DETERMINE THE EXPERIMENTAL … 
Algebra Please help me :(
Brandon flips two fair coins multiple times and records the frequency of the results in the following table. 50 trials125trials150trials HH 10 33 37 TH 9 31 38 HT 13 28 38 TT 18 33 37 DETERMINE THE EXPERIMENTAL PROBABILITY AND THEORETICAL …