Access code for a cars security system
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?
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Consider following events for college professor selected at random:
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 number of different combinations he needs in order
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.
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 all the children is 12.333. Find the value of the n
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.)" Don't forget to write the mathematical model and e
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 in pounds?
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 smoking rate for young adults in U.S. has decreased s
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 to answer the following questions.
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