Question
There are โxโ white balls and 5 black balls in a
jar. If the probability of picking a white ball is 2/3, then calculate the probability that the two chosen balls are not of the same colour.Solution
ATQ, Total balls = x + 5 So, x/(x + 5) = 2/3 Or, 3x = 2x + 10 So, x = 10 Desired Probability = (10C1 ร 5C1)/(15C2) = (2 ร 10 ร 5)/(15 ร 14) = 10/21
In rose pruning time in rose growing area is -
Which of the following is a direct method of weed control involving the mechanical destruction or physical removal of weeds?
For the purpose of general long-term storage, the recommended temperature range for potatoes is:
Which device is used to measure the moisture content of the soil/media automatically?
What are the standard ingredients found in a common potting mix?
By definition, what is the primary purpose of a nursery?
In agronomic terms, which crop is identified as a โcatch cropโ typically grown to utilize residual soil moisture or prevent nutrient leaching?
Artificial lighting used to extend day length is called:
Vermiculite is created by the industrial heat-processing of:
The โsuckersโ used for propagation of tuberose originate from which part of the plant?