Q) If the mode of the following distribution is 55, then find the value of x. Hence, find the mean. Q35 A – Sample Question Paper – Set 1 – Maths Standard – CBSE 2026 Ans: Approach: Let’s start calculating the mode value for the given data and it will be calculated in terms of […]
statistics
Q) A survey regarding heights (in cm) of 51 girls of class X of a school was conducted and the following data was obtained: You can embed this directly into your HTML page. Want it styled with CSS or made responsive for mobile? I can help with that too! Find the median height of girls.
Q) Medical check-up was carried out for 35 students of a class and their weights were recorded as follows: Find the difference between the mean weight and the median weight. PYQ: 35 – CBSE 2025 – Code 30 – Series 5 – Set 1 Ans: Step 1: Mean weight value of data: To calculate the
Q) Using step-deviation method, find mean for the following frequency distribution: ICSE Specimen Question Paper (SQP)2025 Ans: Step 1: Let’s re-organize the data in the table: Step 2: Here we have = 30, = – 12, a = 52.5, h = 15 Given that the total of frequencies = 40 ∴ Mean = a + x
Using step-deviation method, find mean for the following frequency distribution: Read More »
Q) The table given below shows the runs scored by a cricket team during the overs of a match. Estimate the modal runs scored. ICSE Specimen Question Paper (SQP)2025 Ans: Since the modal class is the class with the highest frequency. In the given question, class “50 – 650” has 60 frequency which is the
Q) The COVID-19 pandemic, also known as coronavirus pandemic, is an ongoing pandemic of coronavirus disease caused by the transmission of severe acute respiratory syndrome coronavirus 2 (SARS-CoV-2) among humans. The following tables shows the age distribution of case admitted during a day in two different hospitals Refer to table 1 1. The average age for
Q) Literacy rates of 40 cities are given in the following table. It is given that mean literacy rate is 63.5, then find the missing frequencies x and y. Ans: Step 1: Let’s re-organize the data in the frequency table to find out each part: Step 2: Given that the total of frequencies = 40
Q) If the median of the following frequency distribution is 32.5. Find the values of f1 and f2 . Ans: Step 1: Let’s re-organize the data in the frequency table to find out each part: Step 2: Given that the total of frequencies = 40 ∴ 31 + f1 + f2 = 40 ∴ f1
Q) The following distribution shows the daily pocket allowance of children of a locality. The mean daily pocket allowance is < 36.10. Find the missing frequency, f. Ans: Let’s re-arrange the data with midpoint of each class, frequency, and multiply midpoint with frequency: We know that the mean value of a grouped data is given
The following distribution shows the daily pocket allowance of children of a locality. Read More »
Q) The following table shows the ages of the patients admitted in a hospital during a year: Find the mode and mean of the data given above. Ans: (i) Mode value of the data: Since the modal class is the class with the highest frequency. In the given question, class “35 – 45” has 23