Một người đi từ nhà đến cơ quan phải trải qua 3 ngã tư, xác xuát đẻ người đó gặp đèn đỏ ở các ngã tư tương ứng 0,2;0,4;0,6. Hỏi thời gian trung bình phải ngừng trên đường là bao nhiêu, biết rằng khi gặp đèn đỏ ,người ấy phải đơi khoảng 3 phút

Paint color preference children adults total 0.6 0.77 liked new paint color disliked new paint color 0.4 0.15 0.23 total 1.0 1.0 1.0 which value for x completes the conditional relative frequency table by column?

Jamie went to home depot. she bought 25 bags of soil that cost $9 per bag. she bought 15 pots at $8 each, and she bought 23 bags of pebbles at $15 each. she used a coupon that gave her $5 off for every 100 dollars she spent. how much did jame pay at the end?

Someone answer asap for ! the following statements are true about the coins calvin and sasha have collected. * calvin and sasha has the same amount of money. * calvin has only quarters. * sasha has dimes, nickels, and pennies * calvin has the same number of quarters as sasha has dimes. * sasha has $1.95 in coins that are not dimes. exactly how many quarters does calvin have?