Calculate The Expected Value of X

Question

Accepted characters: numbers, decimal point markers (period or comma), sign indicators (-), spaces (e.g., as thousands separator, 5 000), "E" or "e" (used in scientific notation). NOTE: For scientific notation, a period MUST be used as the decimal point marker.  Complex numbers should be in the form (a + bi) where "a" and "b" need to have explicitly stated values. For example: {1+1i} is valid whereas {1+i} is not. {0+9i} is valid whereas {9i} is not. The following data were obtained from a survey of college students. The variable X represents the number of non-assigned books read during the past six months.

       x         0         1        2         3        4         5        6
P (X=x)    0.55    0.15    0.10    0.10    0.04    0.03    0.03

What is the expected value of X? Place your answer, rounded to two decimal places.

Summary

This short answer question belongs to Statistics and it is about calculating the expected value of X. The data is about a survey on college students reading non-assigned books.

Total Word Count 18