Chromebook is a new ty for everything you love C Secure https www mathaloom stud

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Chromebook is a new ty for everything you love C Secure https www mathaloom student Playerlest aspx testld 152074208 MATH 1342 401 Thomason Clayton Quiz: Quiz #7: sections 5.4, 5.5, 6.1 This Question: 1 pt 9 of 16 (7 complete) The probably histogram the nght represents the number ot live baths by a mother 48 to 51 years old who had a live is he probably that a randomly selected 48 to 5 lyear-old mother who had a live birth in 2012 has had her fourth live birth? ti W probat r aratandomly selected 48 to 51 yea old mother who had alve bith in 2012 as had hor ourth ortmh birth? Hisense

Explanation / Answer

a) P(4th birth) = 0.115

b) P(4th or 5th birth) = 0.115+0.094 = 0.209

c) P(6th or more birth) = 0.026+0.035+0.042 = 0.103

d) Expected number of births = 1x0.238 + 2x0.279 + 3x.171 + 4x.115 + 5x.094 + 6x0.026 + 7x0.035 + 8x0.042

= 2.976

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