I need help solving this statistics problem. Please find the mean, varience ,etc

Question

I need help solving this statistics problem. Please find the mean, varience ,etc.

(D Da Hamework Amando Guerrera Google Ch https://www m athxl.com Student/PlayerHomework aspx? home workld 353549&questionld; &flushed-; false&cld-45105708ucentenwinye; Summer I 2017 Math1342E0 Armando Guerrero 6/2017 10.47 PM Homework: HW 4.1 Save Score 0.2 of 1 pt 7 of 9 (7 complete) v HW Score: 68.89%, 6.2 of 9 pts 4.1.32 Question Help Use the probability distribution or histogram to find tha (a) mean, (b) variance, (c)standard deviation, and (d) expected value of the probability distribution. and le interpret tha results. The histogram shows tha distribution of household sizes in country A for a recent year. 0,30 a The mean is Type an integer or a decimal. Do not round.) Enter your answer in the answer box and then click Check Answer parts Clea emaining 047 PM

Explanation / Answer

Ans:. x p(x)

1                0.284

2    0.331

3    0.148

4    0.138

5    0.056

6    0.043

Mean=1*0.284+2*0.331+3*0.148+4*0.138+5*0.056+6*0.043=2.48

Variance=(1-2.48)2*0.284+(2-2.48)2*0.331+(3-2.48)2*0.148+(4-2.48)2*0.138+(5-2.48)2*0.056+(6-2.48)2*0.043

Variance=1.9456

Standard deviation=1.9456=1.3948

Expected value=mean=2.48

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