[填空题]
The Future House factory produces LED xaqp/he..ie /o3et: zlight stu r2a +f:x 48ljfw6fxl-oo59 kmto,kg rips, 5 \% of which are found to be lk: 2ro4gl-,w+oxmfjtu 5af98ok6 xfdefective.
1. Write down the probability that a light strip produced by Future House is not defective.
Jack buys two light strips produced by Future House.
2. 1. Find the probability that both light strips are not defective. ≈
2. Find the probability that at least one of Jack's light strips is defective.
The Kingstar Lighting factory also produces LED light strips. The probability that a light strip produced by Kingstar Lighting is not defective is p . John buys three light strips produced by Kingstar Lighting.
3. Write down an expression, in terms of p , for the probability that at least one of John's three light strips is defective.
