Question
An unbiased coin is tossed until a head appears. The
expected number of tosses required isSolution
Let X denote the number of tails tossed before the head appears. Then X is a geometric random variable. P(head) = 1 / 2 and the expectation is E(X)=1 / (1/2) = 2.
Streptokinase enzyme is used for :Â
Which of the following is a unicellular organism?
I. Amoeba
II. Paramecium
Nyctalopia, or night blindness, is caused by a deficiency in which vitamin?
The first genetic material on Earth was most likely:
Which of the statements given below are correct?Â
1. A person having blood group 'A' can donate blood to persons having blood group 'A' and bloo...
In the names Mangifera indica (mango), Solanum tuberosum (potato), and Panthera leo (lion), what do the names indica, tuberosum, and leo represent?
The shared terminal duct for the reproductive and urinary systems in males is:
Adipose tissue is an example of which type of tissue?
In roots, the protoxylem lies towards the periphery and the metaxylem towards the center. This arrangement of primary xylem is called:
Growth hormone is secreted by which gland?
