Kurtosis is a measure of the skewness of data distribution.

A. measure

B. way

C. solution

D. Method

A.suspect about

B.suspend about

C.speculate about

D.specialize in

What would Kousky like to do with La events？

A．To predict the climate conditions.

B．To measure the changes of climate.

C．To predict natural disasters.

D．To measure damage precisely.

A.cdfplot(data)

B.skewness(x)

C.hist（data,k）

D.kurtosis(x)

Researchers find that when a person tells lies______.

A．his blood pressure increases measurably

B．he looks very serious

C．he tends to make some small changes in his behavior

D．he uses his unconscious mind

A.书籍。

B.期刊。

C.会议论文集。

D.公司报告。

A.单峰和偏峰，尖尾

B.多峰，宽尾

C.偏峰，尖尾

D.多峰和偏峰，宽尾

NASA thinks space travellers must ______ to do private space travel

A．observe safety measures carefully

B．have a new desire to use space vehicles for civilian travel

C．nagotiate with Russia or NASA

D．be as rich as Dennis Tito and Mark Shuttleworth