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Assume we want to find the number of fish in the campus pond. To do this, ten blue goldfish are released in the pond and three days later, a catch of fifteen fish yielded five blue goldfish. Determi
A particular brand of shirt comes in [10] colors, has a male version and female version, and comes in [4] sizes for each sex. How many different types of this shirt are made?
Keep your eyes and ears open as you read or listen to the news this week. Find out an example of statistics in news to explain the following statement which represents one of the objectives of stati
Considering the random experiment of observing the mechanical or electrical unit consisting of five components and find out which components are working and which have failed. Employ the basic coun
The sixth grade is going on field trip to museum all day and museum offers school group price of $189 and each and every student will pay an equal part of that total. When 12 kids had to play in the
When 12 kids had to play in baseball game which was cancelled and rest of the students had to pay extra dollar. How many students went on trip and how much did each one pay?
Successive monthly sales are independent normal random variables with mean 100 and variance 100. Determine the probability that at least one of next five months has sales above 115
Suggest this situation: A manager has partitioned company's sales in six districts: North, East, South, Midwest, West, and international. What graph or table would you employ to make the following p
There are 9 white balls and 4 red balls in urn. How many different manners are there to select a subset of 6 balls, supposing the 13 balls are different?
A biologist is studying the appearance of three genotypes, denoted by A, B and C, in certain insects. For each of the three genotypes,
Consider the normally distributed graph with mean of 24 hrs, and standard deviation, of 4 hours. Determine the value of x, in hours, for which 5.05 % of data are below this value. Round to two decim
A researcher believes that the ankle circumference for adult females in Europe can be considered to have a normal distribution with a mean of 20 cm.If his belief is correct which of the following ra
A state administered standardized reading exam is given to eighth grade students. The scores upon this exam for all students statewide have normal distribution with mean of 508 and standard deviatio
The Mental Development Index (MDI) of the Bayley Scales of Infant Development is the standardized measure employed in longitudinal follow-up of high-risk infants. The scores on MDI have approximatel
The length of human pregnancies from conception to birth varies according to distribution that is approximately normal with mean 260 days and standard deviation 20 days. Employ the 68-95-99.7 rule t
A 1982 study pointed out that 40% of young adults (18-25 years old) in U.S. smoked cigarettes. In later survey of 1500 young adults, 536 were found to be smokers. Do the data point out that the smok
A study of diet and weight gain deliberately overfed 16 volunteers for the eight weeks. The mean raise in fat was x = 2.33 kilograms and standard deviation was s = 1.37 kilograms. What are x and s i
Discuss which two different models could be employed to forecast the number of Tablet PCs which are expected to be sold this summer (you don't have to find out the data, is just about the model.)" D
The access code for a cars security system consists of four digits. The first digit cannot be 3 and the last digit must be odd. How many different codes are available?
A classroom of n = 5 children has a mean score of 13.800 on a measure of hyperactivity. One new child is added to the class, and the mean hyperactivity score for the resulting classroom including al
A committee of four students will be selected from a list that contains six Grade 9 students and eight Grade 10 students. Show the probability distirubtion for number of grade 10's on the comittee.
He is considering three different album covers that might be employed, four different television commercials which might be employed, and two different album posters that may be used. Find out the n
Consider following events for college professor selected at random:
Two pumps connected in parallel fail independently of one another upon any given day. The probability that only older pump will fail is .10, and probability that only the newer pump will fail is .05
Determine the probability that at least one of the two projects will be successful? Given that at least one of the projects is successful, what is the probability that only the Asian project is succes