1231. The probability of rolling a 7 with two die ?
A. 1/6 *
1232. Two fair dice are tossed simultaneously, What is the probability that the product of the numbers that land showing is at least 25?
C. 1/9 *
1233. If two fair dice are tossed ,What is the probability that the two numbers that turn up are consecutive integer?
C. 0.28 *
1234. A coin is tossed 5 times the probability that at least one head occurs ?
A. 31/32 *
1235. The probability that single toss of a dice will result in a number less then 4 If it is given that the loss resulted in an odd number :
C. 2/3 *
D. None of them
1236. An arrangement of a finite number of objects taken some or all a time is called :
A. Combination *
1237. ABC, ACB, BAC, BCA, CAB, CBA represent :
A. Four combination *
B. Six combination
C. One combination
D. Three combination
1238. If a 4 digit numbers id formed by using the digits 1,2,3 and 5 with no repitition , then the probability that the number is divided by 5 is :
D. 1/4 *
1239. There are 4 letters and 4 directed envelops the number of ways in which all the letters are not inserted in correct envelops is :
A. 23 *
1240. A coin is tossed thrice . The odds of hitting your head at least once are:
D. 7/8 *