mathplease help!
posted by KiKi .
The number of complaints received by a business bureau can be represented by the following probability distribution. Find the expected number of complaints per day.
complaints per day 0,1,2,3,4,5
probability0.01,0.11,0.26,0.28,0.19,0.12
can someone please help me figure out where to start here?
Respond to this Question
Similar Questions

Statistics
1. Use the following to answer questions: The table below presents the probability distribution for X = the number of email messages you will receive in the next 10 minutes. (9 pts) X 0 1 2 3 P(X) .35 .35 .25 .05 a. What is the probability … 
statistics
Suppose the number of customer complaints per day on the morning shift 612 noon at Doys is distributed as # of complaints f(x) 0 .3 1 ? 
stats help!
suppose the number of customer complaints per day on the morning shift (6am12) at Murph's Coffee is distributed as follows: Complaints f(x) 0 .3 1 ? 
statistics
A salesperson has found that the probability of making various numbers of sales per day is presented in the following table. Calculate the expected number of sales per day and the standard deviation of the number of sales. Number of … 
statistics
The Better Businesss Bureau reports that they resolve 70% of the consumer complaints they receive. a) if a random sample of 5 consumer complaints is selected, what is the probability that all 5 were resolved? 
statistics
the average student sends about 200 text messages a day with the standard deviation of 25 texts.(show graph) a.what is the probability that a student sends more than 250 messsages a day? 
Finance
5.3 The manager of a large computer network has developed the following probability distribution of the number of interruptions per day: Interruptions (X) P1X2 0 0.32 1 0.35 2 0.18 3 0.08 4 0.04 5 0.02 6 0.01 a. Compute the expected … 
statistics
A researcher is interested in whether herbal remedies are effective in relieving allergies, and if so, which ones are most effective. The researcher takes a group of 20 allergy sufferers and randomly assigns each one to receive herbal … 
grammar clauses
The adjective clause in the following sentence modifies.... The time for complaints about the tax notices you have received has already passed. complaints, time or notices? 
Math
Complaints dropped from .7 to .07 per 1,000 people. Is this equivalent to saying there was a 90 percent reduction in complaints?