The attendance report of a class for 150 days is as follows-begin array -c- c - Whe Student - Attendance Whline1 - 146 Whline2 - 142 Whline3 - 147 Whe4 - 149 Whline 5 - 146 Whline6 - 145 - Whline7 - 147 Whline8 - 146 IWhline 9 - 145 Whline10 - 150 Whline11 - 143 Whline12 - 145 IWhline13 - 144 IWhline14 - 142 IWhline15 - 148 WhlineWhat is the probability that a student has 98 - or more attendance-

The correct option is B 1/3 98 percentage of 150 is = 98 /100 × 150 = 147 Number of students having more than 98 ...

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Standard VII

Mathematics

Experimental/ Empirical Probability

The attendanc...

Question

The attendance report of a class for 150 days is as follows:

$\begin{matrix} S t u d e n t & A t t e n d a n c e 1 & 146 2 & 142 3 & 147 4 & 149 5 & 146 6 & 145 7 & 147 8 & 146 9 & 145 10 & 150 11 & 143 12 & 145 13 & 144 14 & 142 15 & 148 \end{matrix}$

What is the probability that a student has 98% or more attendance?

1/2

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1/3

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1/4

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1/5

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Solution

The correct option is B
1/3

98 percentage of 150 is $= \frac{98}{100} \times 150 = 147$

Number of students having more than 98% = 5

Therefore the probability of a student having attendance of 98% or more $= \frac{5}{15} = \frac{1}{3}$

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Similar questions

The attendance report of a class for 150 days is as follows:

$\begin{matrix} Student & Attendance 1 & 146 2 & 142 3 & 147 4 & 149 5 & 146 6 & 145 7 & 147 8 & 146 9 & 145 10 & 150 11 & 143 12 & 145 13 & 144 14 & 142 15 & 148 \end{matrix}$

What is the probability that a student has 98% or more attendance?

The attendance report of a class for 150 days is as follows:

$\begin{matrix} Student & Attendance 1 & 146 2 & 142 3 & 147 4 & 149 5 & 146 6 & 145 7 & 147 8 & 146 9 & 145 10 & 150 11 & 143 12 & 145 13 & 144 14 & 142 15 & 148 \end{matrix}$

What is the probability that a student has 98% or more attendance?

The heights (in cm) of 9 students of a class are
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Q. The heights of students are given below.

Height ( $cm$ )	$141$	$142$	$144$	$145$	$148$	$150$
Number of students	$7$	$11$	$10$	$12$	$20$	$13$

Find the mode of the height.

Q. The heights of

6

boys in a group are

142

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154

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146

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145

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151

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150

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The attendance report of a class for 150 days is as follows: StudentAttendance114621423147414951466145714781469145101501114312145131441414215148 What is the probability that a student has 98% or more attendance?

The correct option is B 1/3 98 percentage of 150 is =98100×150=147 Number of students having more than 98% = 5 Therefore the probability of a student having attendance of 98% or more =515=13

The correct option is B
1/3

98 percentage of 150 is $= \frac{98}{100} \times 150 = 147$

Number of students having more than 98% = 5

Therefore the probability of a student having attendance of 98% or more $= \frac{5}{15} = \frac{1}{3}$