Question

_{in a class of 40 students, 22 have taken the course before either at the high school or college levels. If we pick 5 students;}

_{a. create a probability distribution for the number of students who have taken the same course (C).}

_{b. What is the probability that at most 3 have taken the same course before}

_{c. Mean}

_{d. Variance}

_{e. standard deviation}

Answer 1

AnGiven that. nalass ofo Studenti,2 havetatun .the haveestudent Alou considu → noist ways of select na s student cbe oSeleeting o Studnt -22)18 me. of usayt t s electing 1 student 21& n(i) 613203 ui9 setee 2218 Sunday 18 Notes 8 46 no. ot wap 咋..sune selected. 3 Student of

22 18 6-8 13. 26339 L. Y) (5): 26 33チつ国 Studentscoho have taken the oog 0.013 m(6720 P(n) GSSDO8 April 18 Mon 30 2 9 16 23 m(s) 316 0200, Tue3 10 17 24 t4) Wed 4 11 18 25 Thu s 12 19 26 2 219 400 Fri 6 13 20 27 0 00 Sat 7 14 21 28 todau is the tomorrow you worried about yesterday

O olo :..fof m딘 o, to 23 Noco . С.cm sedes -from pat @) Yo汇ability that armoir 3 have e urme couse be (x012 010286+0.38) mear s) Notes: March '18 Mon 5 12 19 26 e 04 t(o.1023)十2(0.2865) Tue 6 13 20 27 Wed 7 14 21 28 Thu 1 8 15 22 29 Fi 2 9 16 23 30 x Sat 3 1017 2431 ( 9 026 Sun 4 11 18 25

Bolowin Plus 4 s240s 2 -V Vau anee dutatum: Standoud Notes: (e) April '18 Mon 30 2 9 16 23 Tue 3 10 17 24 Thu 5 12 19 26 6 13 20 27 Fri Sat 7 14 21 28 Sun 1 8 15 22 29