29. The registration record of a private college indicates that 40 % of its new intakes are international students and the remaining are local students. a. If 20 new students are randomly selected and the number of local students are noted, find the probability that there are i. equal number of local and international students. ii. not less than 9 local students. b. Exactly 100 new students are randomly selected. By using a suitable approximate distribution, i. find the probability that between 38 and 46 are international students. ii. determine the value m such that the probability that the number of international students is at most m is 0.993.
Unitary Method
The word “unitary” comes from the word “unit”, which means a single and complete entity. In this method, we find the value of a unit product from the given number of products, and then we solve for the other number of products.
Speed, Time, and Distance
Imagine you and 3 of your friends are planning to go to the playground at 6 in the evening. Your house is one mile away from the playground and one of your friends named Jim must start at 5 pm to reach the playground by walk. The other two friends are 3 miles away.
Profit and Loss
The amount earned or lost on the sale of one or more items is referred to as the profit or loss on that item.
Units and Measurements
Measurements and comparisons are the foundation of science and engineering. We, therefore, need rules that tell us how things are measured and compared. For these measurements and comparisons, we perform certain experiments, and we will need the experiments to set up the devices.
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