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  2. Mean corpuscular hemoglobin concentration - Wikipedia

    en.wikipedia.org/wiki/Mean_corpuscular...

    The mean corpuscular hemoglobin concentration (MCHC) is a measure of the concentration of hemoglobin in a given volume of packed red blood cell. It is calculated by dividing the hemoglobin by the hematocrit. Reference ranges for blood tests are 32 to 36 g/dL (320 to 360g/L), [1] or between 4.81 and 5.58 mmol/L. It is thus a mass or molar ...

  3. Median - Wikipedia

    en.wikipedia.org/wiki/Median

    The median of a symmetric distribution which possesses a mean μ also takes the value μ. The median of a normal distribution with mean μ and variance σ 2 is μ. In fact, for a normal distribution, mean = median = mode. The median of a uniform distribution in the interval [a, b] is (a + b) / 2, which is also the mean.

  4. Z-test - Wikipedia

    en.wikipedia.org/wiki/Z-test

    / is the critical value of the standard normal distribution (e.g., 1.96 for a 95% confidence level). The MDE for when using the (two-sided) z-test formula for comparing two proportions, incorporating critical values for α {\displaystyle \alpha } and 1 − β {\displaystyle 1-\beta } , and the standard errors of the proportions: [ 1 ] [ 2 ]

  5. 35.5 cm MRK L/22.5 - Wikipedia

    en.wikipedia.org/wiki/35.5_cm_MRK_L/22.5

    As mentioned above, in early 1873, the German Navy had concluded that its coastal 28 cm RK L/22 would not be powerful enough in the near future. [5] It was not known what the caliber of the successor of the 28 cm RK L/22 had to be. Krupp had anticipated on this demand by producing the 30.5 cm RK L/22 in 1872.

  6. List of countries by median age - Wikipedia

    en.wikipedia.org/wiki/List_of_countries_by...

    A comprehensive list of countries by median age, providing insights into the population age distribution worldwide.

  7. Particulates - Wikipedia

    en.wikipedia.org/wiki/Particulates

    PM 10: Annual mean not to exceed 15 μg/m³; 24-hour mean not to exceed 45 μg/m³. [165] PM 2.5: Annual mean not to exceed 5 μg/m³; 24-hour mean not to exceed 15 μg/m³. [165] Exposure above these levels increases the risk of adverse health effects. [165]

  8. Equivalent (chemistry) - Wikipedia

    en.wikipedia.org/wiki/Equivalent_(chemistry)

    This is especially common for measurement of compounds in biological fluids; for instance, the healthy level of potassium in the blood of a human is defined between 3.5 and 5.0 mEq/L. A certain amount of univalent ions provides the same amount of equivalents while the same amount of divalent ions provides twice the amount of equivalents.

  9. 30.5 cm MRK L/35 - Wikipedia

    en.wikipedia.org/wiki/30.5_cm_MRK_L/35

    The 30.5 cm Mantel Ring Kanone L/35 was a 30.5 cm 35 caliber long Krupp gun.It was a further development of the earlier 30.5 cm MRK L/22.There were multiple models: The early model was basically a lengthened 30.5 cm MRK L/22.