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The probability of obtaining heads on a biased coin is 0.4. The coin is tossed 600 times. Write down the mean number of heads and the standard deviation of the number of heads.

The distribution of heads on a biased coin will be binomial - there are only two possible outcomes for a given throw (disregarding the coin standing upright after a toss). Thus X ~ B(600, 0.4) - where X i...

Answered by Aleksander L. • Maths tutor

14903 Views

Describe the course taken by a deoxygenated red blood cell returning to the heart from the circulation, naming any vessels or chambers along its course.

Following its return to the right atrium via the vena cava, the RBC passes through the mitral valve and into the right ventricle. Upon ventricular contraction, the RBC is ejected via the pulmonary valve a...

Answered by William B. • Biology tutor

2217 Views

In which order do the direct and indirect object pronouns appear in Spanish?

In Spanish the indirect object pronoun (me, te, le etc.) will come before the direct object pronoun (lo, la etc.), in structures such as in simple sentences, at the end of infinitives an...

Answered by Cameron G. • Spanish tutor

2195 Views

With reference to a poverty trap (poverty cycle), explain how “investing in human development is crucial to ... reducing poverty”

A poverty trap is a vicious cycle that can be observed in poorer societies or poorer members of rich societies. It is caused by lack of capital - this includes natural capital, human capital, and actual c...

Answered by Aleksander L. • Economics tutor

5406 Views

Compare and contrast the role of interpreter and compiler in computing.

Both interpreter and compiler come into play when a human is coding in a high-level programming language. This term means that the language resembles a human language - uses words such as...

Answered by Aleksander L. • ICT tutor

10300 Views