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The normal distribution, also known as the Gaussian distribution, has several key properties: 1. Symmetry: It is symmetric around its mean (μ), meaning the left and right sides of the distribution are mirror images. 2. Mean, Median, and Mode: These are all equal and located at the center of the distribution. 3. Bell-Shaped Curve: The graph of the normal distribution is bell-shaped and peaks at the mean. 4. Asymptotic: The tails approach the horizontal axis but never touch it. 5. Defined by Mean and Standard Deviation: Completely characterized by its mean (μ) and standard deviation (σ). 6. Empirical Rule: Approximately 68% of data falls within ±1σ, 95% within ±2σ, and 99.7% within ±3σ of the mean
323 × 15 + (?)² = 4989
4387897 – 3286871 – 51926 = ?
√144 × √121 + 25% of 600 = ? + 256
162 ÷ [51 – {29 – (9 – 6̅ ̅+̅ ̅7̅ )}]=?
3/7 of 686 + 133(1/3)% of 33 – 69 =?
116*2/3% of 18600 + 666*2/3% of 1290 = 457*1/7% of 1750 + 555*5/9% of 3150 + ?
(15/8) x [6924 – 2124] + 910 = ? + 190
961 × 4 ÷ 31 – 15% of 180 = ? – 73
447.8× 441.2÷ 445= 44 × 44?