Takwimu Vikokotoo

Hesabu wastani, kati, na hali ya seti yoyote ya data. Ingiza thamani — ona wastani wote watatu, data iliyopangwa, na jedwali la mzunguko. Bila malipo.

Hesabu tofauti na kupotoka kwa kawaida. Suluhisho la hatua kwa hatua na mfumo, seti ya data ya mfano na mwongozo wa tafsiri.

Hesabu vipindi vya imani kwa wastani wa idadi. Suluhisho la hatua kwa hatua na mfumo, seti ya data ya mfano na mwongozo wa tafsiri.

Badilisha majibu sahihi kuwa asilimia na daraja la herufi. Matokeo ya haraka na sahihi na mfumo na maelezo ya hatua kwa hatua. Bila malipo.

Pata wastani wa hesabu wa seti yoyote ya nambari. Ingiza thamani zako — ona wastani, jumla, idadi, na jinsi kila thamani inavyoathiri wastani. Bila malipo.

Hesabu robo na IQR. Suluhisho la hatua kwa hatua na mfumo, seti ya data ya mfano na mwongozo wa tafsiri.

Pata nafasi ya asilimia ya thamani za data. Suluhisho la hatua kwa hatua na mfumo, seti ya data ya mfano na mwongozo wa tafsiri.

Hesabu tofauti ya takwimu. Suluhisho la hatua kwa hatua na mfumo, seti ya data ya mfano na mwongozo wa tafsiri.

Hesabu z-score kutoka kwa thamani yoyote, wastani, na kupotoka kwa kawaida. Ingiza data yako — ona z-score, nafasi ya asilimia. Bila malipo.

Muhtasari kamili wa takwimu wa seti yoyote ya data. Ingiza thamani zako — ona wastani, kati, hali, tofauti, kupotoka kwa kawaida, na asilimia. Bila malipo.

Jumlisha orodha ya nambari kwa haraka na kwa usahihi. Ingiza thamani zako zikitenganishwa na koma — ona jumla, wastani, idadi, min, na max. Bila malipo.

Tengeneza nambari za nasibu katika safu yoyote na au bila kurudia. Ingiza min, max, na idadi — ona nambari zako za nasibu papo hapo. Bila malipo.

Chagua majina ya nasibu kutoka kwenye orodha yako kwa uwezekano sawa. Ingiza majina kila mmoja kwa mstari — chagua moja au mengi na upate matokeo ya haki. Bila malipo.

Piga sarafu ya haki na ufuatilie matokeo katika mapigo mengi. Chagua idadi ya mapigo — ona matokeo ya vichwa/mikia na takwimu za uwezekano. Bila malipo.

Hesabu Daraja kwa haraka na kwa usahihi. Ingiza thamani zako — ona matokeo na mfumo. Bila malipo.

Hesabu GPA kwa haraka na kwa usahihi. Ingiza thamani zako — ona matokeo na mfumo. Bila malipo.

Hesabu Asilimia ya Kura kwa haraka na kwa usahihi. Ingiza thamani zako — ona matokeo na mfumo. Bila malipo.

Tengeneza michoro ya kiroboto-na-jani kutoka kwa seti yoyote ya data. Ingiza thamani zako — ona mchoro kamili. Bila malipo.

Hesabu ukubwa wa sampuli unaohitajika kwa uchunguzi na majaribio. Ingiza kiwango cha imani, kosa la kawaida, na idadi — pata n ndogo. Bila malipo.

Hesabu kosa la kawaida kwa matokeo ya uchunguzi. Ingiza ukubwa wa sampuli, kiwango cha imani, na uwiano — pata kosa la kawaida. Bila malipo.

Fanya mtihani wa chi-square wa kufaa au uhuru. Ingiza masafa yanayoonekana na yanayotarajiwa — ona χ², p-thamani, na tafsiri. Bila malipo.

Fanya mtihani wa t wa sampuli mbili huru. Ingiza seti zako za data — ona t-takwimu, shahada za uhuru, p-thamani, na hitimisho la takwimu. Bila malipo.

Hesabu mgawo wa uhusiano wa Pearson au Spearman. Ingiza data zilizounganishwa — ona thamani r, r², na tafsiri ya mchoro wa kutawanyika. Bila malipo.

Hesabu uhusiano wa nafasi ya Spearman kati ya vigeuzi viwili. Ingiza data zilizounganishwa — ona ρ, p-thamani, na nguvu ya uhusiano. Bila malipo.

Mgawo wa uamuzi R². Mfumo, maelezo ya vigeuzi, mchoro na mfano umejumuishwa. Matokeo ya jiometri ya papo hapo.

Hesabu d ya Cohen na ukubwa wa athari wa takwimu. Ingiza wastani na kupotoka kwa kawaida — ona d na tafsiri ya athari ndogo/kati/kubwa. Bila malipo.

calcDescriptions.normal-distribution

Hesabu uwezekano wa usambazaji wa binomial. Ingiza n, k, na p — ona P(X=k), P(X≤k) ya mkusanyiko, wastani, tofauti. Bila malipo.

Hesabu uwezekano wa Poisson kwa matukio nadra. Ingiza λ (kiwango cha wastani) na k — ona P(X=k), uwezekano wa mkusanyiko. Bila malipo.

Hesabu wastani wa jiometri wa seti yoyote ya data. Ingiza thamani — ona mfumo wa mzizi wa nth, matokeo, njia ya logarithm. Bila malipo.

Calculate the harmonic mean of any set of values. Enter your numbers — see n ÷ Σ(1/xᵢ) with result and comparison to arithmetic mean. Free.

Calculate weighted mean with custom weights for each value. Enter values and weights — see the weighted average with each contribution shown. Free.

Calculate IQR quickly and accurately. Enter your values — see the result with the formula, worked example, and unit options. Free.

Calculate the regression slope and linear equation from two variables. Enter your data — see slope, intercept, correlation coefficient, and residuals. Free.

Calculate statistical power for any study design. Enter effect size, sample size, and significance level — see power and minimum sample needed. Free.

Calculate the trimmed (truncated) mean by removing extreme values. Enter your dataset and trim percentage — see the robust average. Free.

Calculate probability for any event or distribution. Enter your parameters — see probability, odds, and expected value. Free.

Internal consistency reliability. Full formula with variable legend, worked example and step-by-step chemistry solution.

Analysis of variance across multiple groups. Step-by-step solution with formula, example dataset and interpretation guide.

Run a Mann-Whitney U test for non-parametric group comparison. Enter two datasets — see U statistic, p-value, and statistical conclusion. Free.

Compare the variances of two groups with an F-test. Enter both datasets — see the F statistic, p-value, and whether variances are equal. Free.

Understand Type I and Type II errors, alpha, beta, and statistical power. Enter your α, effect size, and n — see power and error probabilities. Free.

Determinant, inverse, addition and multiplication of 2×2 matrices. See formula, step-by-step solution and all rearrangements. Instant math solver.

Solve proportions and find missing values. Enter three of four values in a/b = c/d — see the missing value with cross-multiplication steps. Free.

Perform union, intersection, difference, and symmetric difference of sets. Enter set members — see the result with Venn diagram representation. Free.

Check divisibility by 2 through 12 with instant rule explanations. Enter any integer — see which numbers divide it evenly and the rule used. Free.

Calculate square root, cube root, or any nth root. Enter value and root index — see the exact result, decimal approximation, and verification. Free.

Detect outliers in any dataset using the IQR method. Enter your values — see Q1, Q3, IQR, whisker bounds, and identified outliers. Free.