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Recent questions and answers in Statistics

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Using a die, what is the probability of getting a 7

asked 7 hours ago in Statistics by Thoko (15 points)

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Specify the magnitude of F3

asked 1 day ago in Statistics by Mohammad7727 (15 points)

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25) Calculate the 'Gross Reproduction Rate' for the following data. \begin{tabular}{|l|c|c|c|c|c|c|c|} \hline Age group (in years) & \( 15-19 \) & \( 20-24 \) & \( 25-29 \) & \( 30-34 \) & \( 35-39 \) & \( 40-44 \) & \( 45-49 \) \\ \hline Female population & 8000 & 11000 & 15000 & 20000 & 15000 & 6000 & 5000 \\ \hline Female births & 320 & 660 & 1350 & 2000 & 1035 & 180 & 55 \\ \hline \end{tabular}

asked 4 days ago in Statistics by azeez5169 (20 points)

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Methods of data modeling

asked 6 days ago in Statistics by Rina shah (27 points)

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Methods of data modeling

asked 6 days ago in Statistics by Rina shah (27 points)

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Q.8 To test the effectiveness of inoculation against cholera, the following table was obtained: \begin{tabular}{|l|c|c|c|} \hline & Attached & Not attached & Total \\ \hline Inoculated & 30 & 160 & 190 \\ \hline Not inoculated & 140 & 460 & 600 \\ \hline Total & 170 & 620 & 790 \\ \hline \end{tabular} Use \( \chi^{2} \)-test to defend or refute the statement. The inoculation prevents attack from cholera.

answered 6 days ago in Statistics by Akash Anand (15 points)

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Apply principle of duality to solve LPP

asked May 22 in Statistics by Abhishek1232 (15 points)

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Debye temperature of an unknown solid is 1500k. Calculate the highest vibrational frequency of that solid at 30k.

asked May 21 in Statistics by Shubham Rangari (15 points)

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Find and give the nature of 5he critical values of FX= x^2-6x^2

asked May 20 in Statistics by michellebotho (15 points)

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From the following find net national product at market price

asked Apr 23 in Statistics by Pushpender (15 points)

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a certain store made weekly profit of Rs. 5000, Rs. 10000 and Rs. 80000 in 2006, 2007, 2008 respectively. Determine the average rate of growth of this store's profit

asked Apr 19 in Statistics by minu9761 (15 points)

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Explain the uses of indices.

answered Apr 19 in Statistics by NavyaSingh (23.1k points)

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asked Apr 10 in Statistics by Humble Verrad: (15 points)

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Answer the questions

asked Apr 6 in Statistics by Shivam ahir (15 points)

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How many 3-digits numbers can be formed from 5,6,7,8,9,if a digit can be repeated

answered Apr 5 in Statistics by PeterPJF (1.7k points)

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Calculate Spearman’s rank correlation co-efficient from the following data : X : 52 63 45 36 72 65 47 25 Y: 62 53 51 25 79 43 60 33

answered Apr 4 in Statistics by Kousii (15 points)

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asked Apr 3 in Statistics by sukruth (15 points)

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20 children are selected for a district level spelling test. The distribution of their marks out of 50 marks is given below. Find coefficient of mean deviation. Marks No. of children: 0 - 9 10 - 19 20 - 20 overline 30 - 30 overline 40 - 40 3 6 2

asked Mar 31 in Statistics by shrey6456 (15 points)

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Let \( X_{1}, X_{2}, \ldots, X_{n} \) be a r.s taken from \( U(0, \theta) \). Show that \( T=\left(\prod_{i=1}^{n} X_{i}\right)^{n} \) is a consistent estimator for \( \theta e^{-1} \)

asked Mar 27 in Statistics by salma2406 (59 points)

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An event is very unlikely to happen it's probability is closest to:(a)0.0001(b)0.001(c)0.1

answered Mar 20 in Statistics by PeterPJF (1.7k points)

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