1. If the "tail" of a frequency distribution is in the right direction, the Pearson's coefficient of skewness is?
2. What is nC0?
3. The standard deviation of a frequency distribution is 8, the mean , median, and mode are equal to 50. The Pearson's coefficient of skewness is?
4. How many of any data set are between first and third quartiles?
5. There are 20 points in a plane, how many triangles can be formed by these points if 5 are collinear?
6. There are 30 people in a group. If all shake hands with one another , how many handshakes are possible?
7. The sample space for tossing 4 coins consists of how many outcomes?
8. Mayur travels from Mumbai to Jammu in 7 different ways. But he is allowed to return to Mumbai by any way except the one he used earlier. In how many ways can he complete his journey?
9. Which is not part of the five-number summary in a box plot?
10. Find the number of ways of arranging the letters of the words DANGER, so that no vowel occupies odd place.