Study the given numbers and justify why each of them obviously cannot be a perfect square.

(a)

1000

(b)

34567

(c)

408

\(\sqrt { 128 } -\sqrt { 98 } +\sqrt { 18 } =\) 

(a)

\(\sqrt { 2 } \)

(b)

\(\sqrt { 8 } \)

(c)

\(\sqrt { 48 } \)

(d)

\(\sqrt { 32 } \)

Which is not correct?

(a)

\(\left( \cfrac { -1 }{ 4 } \right) ={ 4 }^{ -2 }\)

(b)

\(\left( \cfrac { -1 }{ 4 } \right) =\left( \cfrac { 1 }{ 2 } \right) ^{ 4 }\)

(c)

\(\left( \cfrac { -1 }{ 4 } \right) ^{ 2 }={ 16 }^{ -1 }\)

(d)

\(-\left( \cfrac { 1 }{ 4 } \right) ^{ 2 }={ 16 }^{ -1 }\)

Data is a collection of________

(a)

numbers

(b)

words

(c)

measurements

(d)

all the three

The difference between the largest value and the smallest value of the given data is_______

(a)

range

(b)

frequency

(c)

variable

(d)

none of these

The data that can take values between a certain range is called________

(a)

ungrouped

(b)

grouped

(c)

frequency

(d)

none of these

Inclusive series is a ________series.

(a)

continuous

(b)

discontinuous

(c)

both

(d)

none of these

 In a class interval the upper limit of one class is the lower limit of the other class. This is ________series.

(a)

Inclusive

(b)

exclusive

(c)

ungrouped

(d)

none of these

The graphical representation of ungrouped data is ________

(a)

histogram

(b)

frequency polygon

(c)

pie chart

(d)

all the three

 Histogram is a graph of a ________ frequency distribution.

(a)

continuous

(b)

discontinuous

(c)

discrete

(d)

none of these

A ________ is a line graph for the graphical representation of the continuous frequency distribution.

(a)

frequency polygon

(b)

histogram

(c)

pie chart

(d)

bar graph

The graphical representation of grouped data is________

(a)

bar graph

(b)

pictograph

(c)

pie chart

(d)

histogram

Online or television advertisements influence on spending decisions by

(a)

using special music

(b)

using attractive pictures

(c)

making me think I need the item

(d)

all the above

When I go shopping, I will buy

(a)

something that looks attractive

(b)

something that I need to purchase

(c)

something my friend has

(d)

the first thing I see in the store

The best shopping choice is

(a)

always shop at brand name stores

(b)

the same thing my friends bought

(c)

compare the choices before buying

(d)

always buy at a regular shop