Its a good thing this family has "just-in-case" funds because one month their car had two flat tires, and they spent $397.00 to buy new tires! what percent of their monthly income was that expense? (round to the nearest whole percent) monthly income: $3500.00 housing costs: 30% ($1050.00) food: 20% ($700.00) clothing: 10%

You were told that the amount of time lapsed between consecutive trades on the new york stock exchange followed a normal distribution with a mean of 15 seconds. you were also told that the probability that the time lapsed between two consecutive trades to fall between 16 to 17 seconds was 13%. the probability that the time lapsed between two consecutive trades would fall below 13 seconds was 7%. what is the probability that the time lapsed between two consecutive trades will be between 14 and 15 seconds?