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Simple and Easy Learning
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Tutorialspoint
42 Views
Given:The distance (in km) of 40 engineers from their residence to their place of work were found as follows:5 3 10 20 25 11 13 7 12 31 19 10 12 17 18 11 3 2 17 16 2 7 9 7 8 3 5 12 15 18 3 12 ... Read More
Tutorialspoint
44 Views
To do:We have to find the probability that any one vehicle out of the total vehicles you have observed is a two-wheeler.Solution:After observing two-wheelers, three-wheelers and four-wheelers going past during $8:00$ to $9:00$ AM, in front of the school gate, we get the following data:Type of vehicleFrequencyTwo wheelers500Three wheelers200Four wheelers100Therefore, ... Read More
Tutorialspoint
122 Views
To do:We have to find the probability that the number written by her/him is divisible by 3.Solution:The total number of students in the class $=30$The probability of selecting a student $= \frac{30}{30}$$= 1$Three digit numbers are $100, 101, .......999$Total number of three digit numbers $= 999 - 100 +1 $$= ... Read More
Tutorialspoint
31 Views
Given:Eleven bags of wheat flour, each marked 5 kg, actually contained the following weights of flour(in kg):4.97, 5.05, 5.08, 5.03, 5.00, 5.06, 5.08, 4.98, 5.04, 5.07, 5.00To do:We have to find the probability that any of the bags chosen at random contains more than 5 kg of flour.Solution:Total number of ... Read More
Tutorialspoint
63 Views
Given:The data obtained for 30 days is as follows:0.03 0.08 0.08 0.09 0.04 0.17 0.16 0.05 0.02 0.06 0.18 0.20 0.11 0.08 0.12 0.13 0.22 0.07 0.08 0.01 0.10 0.06 0.09 0.18 0.11 0.07 0.05 0.07 0.01 0.04To do:We have to find the probability of the concentration of sulphur dioxide ... Read More
Tutorialspoint
66 Views
Given:The blood groups of 30 students of class VIII are recorded as followsA, B, 0, 0, AB, 0, A, 0, B, A, 0, B, A, 0, 0, A, AB, 0, A, A, 0, 0, AB, B, A, B, 0To do:We have to find the probability that a student of this ... Read More
Tutorialspoint
61 Views
Given:The following number of goals were scored by a team in a series of 10 matches:$2, 3, 4, 5, 0, 1, 3, 3, 4, 3$To do:We have to find the mean, median and mode of these scores.Solution:We know that, $\text{ Mean }=\frac{\text { Sum of all the observations }}{\text { Total number ... Read More
Tutorialspoint
94 Views
Given:In a mathematics test given to 15 students, the following marks (out of 100 ) are recorded:$41, 39, 48, 52, 46, 62, 54, 40, 96, 52, 98, 40, 42, 52, 60$To do:We have to find the mean, median and mode of these scores.Solution:We know that, $\text{ Mean }=\frac{\text { Sum of ... Read More
Tutorialspoint
158 Views
Given:$29, 32, 48, 50, x, x + 2, 72, 78, 84, 95$The median of the data is 63.To do:We have to find the value of $x$.Solution:We know that, Median $= \frac{1}{2}[\frac{n}{2}th\ term+(\frac{n}{2}+1)th\ term]$ (when $n$ is even)$=\frac{n+1}{2}th\ term$ (when $n$ is odd)Here, $n = 10$ which is evenTherefore, Median ... Read More
Tutorialspoint
25 Views
To do:We have to find the mode of $14, 25, 14, 28, 18, 17, 18, 14, 23, 22, 14, 18$.Solution:To find the mode of the given data, we have to arrange the data in ascending order.The given data in ascending order is $14, 14, 14, 14, 17, 18, 18, 18, 22, ... Read More